diff --git a/package-lock.json b/package-lock.json
index 66fa294..4da8e2e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -111,7 +111,8 @@
     "arr-union": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
-      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ="
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "optional": true
     },
     "array-unique": {
       "version": "0.2.1",
@@ -126,7 +127,8 @@
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
-      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c="
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
+      "optional": true
     },
     "async": {
       "version": "0.2.10",
@@ -141,7 +143,8 @@
     "atob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.1.tgz",
-      "integrity": "sha1-ri1acpR38onWDdf5amMUoi3Wwio="
+      "integrity": "sha1-ri1acpR38onWDdf5amMUoi3Wwio=",
+      "optional": true
     },
     "babel-code-frame": {
       "version": "6.26.0",
@@ -261,6 +264,7 @@
       "version": "0.11.2",
       "resolved": "https://registry.npmjs.org/base/-/base-0.11.2.tgz",
       "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
+      "optional": true,
       "requires": {
         "cache-base": "1.0.1",
         "class-utils": "0.3.6",
@@ -275,6 +279,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
           "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "1.0.2"
           }
@@ -283,6 +288,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
           "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -291,6 +297,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
           "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -299,6 +306,7 @@
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
           "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "optional": true,
           "requires": {
             "is-accessor-descriptor": "1.0.0",
             "is-data-descriptor": "1.0.0",
@@ -308,12 +316,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "optional": true
         }
       }
     },
@@ -380,6 +390,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
       "integrity": "sha512-AKcdTnFSWATd5/GCPRxr2ChwIJ85CeyrEyjRHlKxQ56d4XJMGym0uAiKn0xbLOGOl3+yRpOTi484dVCEc5AUzQ==",
+      "optional": true,
       "requires": {
         "collection-visit": "1.0.0",
         "component-emitter": "1.2.1",
@@ -395,7 +406,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -480,6 +492,7 @@
       "version": "0.3.6",
       "resolved": "https://registry.npmjs.org/class-utils/-/class-utils-0.3.6.tgz",
       "integrity": "sha512-qOhPa/Fj7s6TY8H8esGu5QNpMMQxz79h+urzrNYN6mn+9BnxlDGf5QZ+XeCDsxSjPqsSR56XOZOJmpeurnLMeg==",
+      "optional": true,
       "requires": {
         "arr-union": "3.1.0",
         "define-property": "0.2.5",
@@ -491,6 +504,7 @@
           "version": "0.2.5",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "0.1.6"
           }
@@ -498,7 +512,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -569,6 +584,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/collection-visit/-/collection-visit-1.0.0.tgz",
       "integrity": "sha1-S8A3PBZLwykbTTaMgpzxqApZ3KA=",
+      "optional": true,
       "requires": {
         "map-visit": "1.0.0",
         "object-visit": "1.0.1"
@@ -600,7 +616,8 @@
     "component-emitter": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
+      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
+      "optional": true
     },
     "compressible": {
       "version": "2.0.14",
@@ -651,7 +668,8 @@
     "copy-descriptor": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
-      "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40="
+      "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=",
+      "optional": true
     },
     "core-js": {
       "version": "1.2.7",
@@ -740,12 +758,14 @@
     "decode-uri-component": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
-      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
+      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
+      "optional": true
     },
     "define-property": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/define-property/-/define-property-2.0.2.tgz",
       "integrity": "sha512-jwK2UV4cnPpbcG7+VRARKTZPUWowwXA8bzH5NP6ud0oeAxyYPuGZUAC7hMugpCdz4BeSZl2Dl9k66CHJ/46ZYQ==",
+      "optional": true,
       "requires": {
         "is-descriptor": "1.0.2",
         "isobject": "3.0.1"
@@ -755,6 +775,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
           "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -763,6 +784,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
           "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -771,6 +793,7 @@
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
           "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "optional": true,
           "requires": {
             "is-accessor-descriptor": "1.0.0",
             "is-data-descriptor": "1.0.0",
@@ -780,12 +803,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "optional": true
         }
       }
     },
@@ -859,9 +884,9 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
     "ejs": {
-      "version": "2.3.4",
-      "resolved": "https://registry.npmjs.org/ejs/-/ejs-2.3.4.tgz",
-      "integrity": "sha1-PHbKoJZks1g7ADevncE2557Gi5g="
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-2.6.1.tgz",
+      "integrity": "sha512-0xy4A/twfrRCnkhfk8ErDi5DqdAsAqeGxht4xkCUrsvhhbQNs7E+4jV0CN7+NKIY0aHE72+XvqtBIXzD31ZbXQ=="
     },
     "encodeurl": {
       "version": "1.0.2",
@@ -918,6 +943,7 @@
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-3.0.2.tgz",
       "integrity": "sha1-Jqcarwc7OfshJxcnRhMcJwQCjbg=",
+      "optional": true,
       "requires": {
         "assign-symbols": "1.0.0",
         "is-extendable": "1.0.1"
@@ -927,6 +953,7 @@
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/is-extendable/-/is-extendable-1.0.1.tgz",
           "integrity": "sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==",
+          "optional": true,
           "requires": {
             "is-plain-object": "2.0.4"
           }
@@ -989,6 +1016,7 @@
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
       "integrity": "sha1-QpD60n8T6Jvn8zeZxrxaCr//DRk=",
+      "optional": true,
       "requires": {
         "map-cache": "0.2.2"
       }
@@ -1020,7 +1048,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1038,11 +1067,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
@@ -1055,15 +1086,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -1166,7 +1200,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -1176,6 +1211,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -1188,17 +1224,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1",
             "yallist": "3.0.2"
@@ -1215,6 +1254,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -1287,7 +1327,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -1297,6 +1338,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -1372,7 +1414,8 @@
         },
         "safe-buffer": {
           "version": "5.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -1402,6 +1445,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -1419,6 +1463,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -1457,11 +1502,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -1473,7 +1520,8 @@
     "get-value": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/get-value/-/get-value-2.0.6.tgz",
-      "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg="
+      "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg=",
+      "optional": true
     },
     "glob": {
       "version": "6.0.4",
@@ -1554,6 +1602,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-value/-/has-value-1.0.0.tgz",
       "integrity": "sha1-GLKB2lhbHFxR3vJMkw7SmgvmsXc=",
+      "optional": true,
       "requires": {
         "get-value": "2.0.6",
         "has-values": "1.0.0",
@@ -1563,7 +1612,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -1571,6 +1621,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-values/-/has-values-1.0.0.tgz",
       "integrity": "sha1-lbC2P+whRmGab+V/51Yo1aOe/k8=",
+      "optional": true,
       "requires": {
         "is-number": "3.0.0",
         "kind-of": "4.0.0"
@@ -1580,6 +1631,7 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
           "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "optional": true,
           "requires": {
             "kind-of": "3.2.2"
           },
@@ -1588,6 +1640,7 @@
               "version": "3.2.2",
               "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
               "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+              "optional": true,
               "requires": {
                 "is-buffer": "1.1.6"
               }
@@ -1598,6 +1651,7 @@
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-4.0.0.tgz",
           "integrity": "sha1-IIE989cSkosgc3hpGkUGb65y3Vc=",
+          "optional": true,
           "requires": {
             "is-buffer": "1.1.6"
           }
@@ -2038,22 +2092,32 @@
       "integrity": "sha1-5lpoZZgIkEKV9q2Z6/aru+tqMvI="
     },
     "hexo-generator-seo-friendly-sitemap": {
-      "version": "0.0.21",
-      "resolved": "https://registry.npmjs.org/hexo-generator-seo-friendly-sitemap/-/hexo-generator-seo-friendly-sitemap-0.0.21.tgz",
-      "integrity": "sha1-dS27K2bRBPNTacsgUBY2giloVqo=",
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/hexo-generator-seo-friendly-sitemap/-/hexo-generator-seo-friendly-sitemap-0.2.1.tgz",
+      "integrity": "sha512-DtEulX/7U2X4bRLztb6cDtHEvtwhEPSaL6shaxNtk2oPljJlnep9vFGGlF3KvTD1XADxSOtvVHd3RKWZEXl9WA==",
       "requires": {
-        "bluebird": "3.5.1",
-        "ejs": "2.3.4",
-        "lodash": "4.17.10",
-        "moment": "2.11.2",
+        "bluebird": "3.5.4",
+        "ejs": "2.6.1",
+        "lodash": "4.17.12",
+        "moment": "2.24.0",
         "pretty-data": "0.40.0",
-        "url-join": "1.1.0"
+        "url-join": "4.0.0"
       },
       "dependencies": {
+        "bluebird": {
+          "version": "3.5.4",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.4.tgz",
+          "integrity": "sha512-FG+nFEZChJrbQ9tIccIfZJBz3J7mLrAhxakAbnrJWn8d7aKOC+LWifa0G+p4ZqKp4y13T7juYvdhq9NzKdsrjw=="
+        },
+        "lodash": {
+          "version": "4.17.12",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.12.tgz",
+          "integrity": "sha512-+CiwtLnsJhX03p20mwXuvhoebatoh5B3tt+VvYlrPgZC1g36y+RRbkufX95Xa+X4I59aWEacDFYwnJZiyBh9gA=="
+        },
         "moment": {
-          "version": "2.11.2",
-          "resolved": "https://registry.npmjs.org/moment/-/moment-2.11.2.tgz",
-          "integrity": "sha1-h5aOX5WsA4wuQqyVnHWBnNP1KQE="
+          "version": "2.24.0",
+          "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
+          "integrity": "sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg=="
         }
       }
     },
@@ -2297,6 +2361,7 @@
       "version": "0.1.6",
       "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
       "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2"
       }
@@ -2318,6 +2383,7 @@
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
       "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2"
       }
@@ -2326,6 +2392,7 @@
       "version": "0.1.6",
       "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-0.1.6.tgz",
       "integrity": "sha512-avDYr0SB3DwO9zsMov0gKCESFYqCnE4hq/4z3TdUlukEy5t9C0YRq7HLrsN52NAcqXKaepeCD0n+B0arnVG3Hg==",
+      "optional": true,
       "requires": {
         "is-accessor-descriptor": "0.1.6",
         "is-data-descriptor": "0.1.4",
@@ -2335,7 +2402,8 @@
         "kind-of": {
           "version": "5.1.0",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-5.1.0.tgz",
-          "integrity": "sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw=="
+          "integrity": "sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==",
+          "optional": true
         }
       }
     },
@@ -2636,12 +2704,14 @@
     "map-cache": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/map-cache/-/map-cache-0.2.2.tgz",
-      "integrity": "sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8="
+      "integrity": "sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8=",
+      "optional": true
     },
     "map-visit": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/map-visit/-/map-visit-1.0.0.tgz",
       "integrity": "sha1-7Nyo8TFE5mDxtb1B8S80edmN+48=",
+      "optional": true,
       "requires": {
         "object-visit": "1.0.1"
       }
@@ -2719,6 +2789,7 @@
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.1.tgz",
       "integrity": "sha512-8ZItLHeEgaqEvd5lYBXfm4EZSFCX29Jb9K+lAHhDKzReKBQKj3R+7NOF6tjqYi9t4oI8VUfaWITJQm86wnXGNQ==",
+      "optional": true,
       "requires": {
         "for-in": "1.0.2",
         "is-extendable": "1.0.1"
@@ -2728,6 +2799,7 @@
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/is-extendable/-/is-extendable-1.0.1.tgz",
           "integrity": "sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==",
+          "optional": true,
           "requires": {
             "is-plain-object": "2.0.4"
           }
@@ -2752,7 +2824,7 @@
     "moment": {
       "version": "2.22.2",
       "resolved": "https://registry.npmjs.org/moment/-/moment-2.22.2.tgz",
-      "integrity": "sha1-PCV/mDn8DpP/UxSWMiOeuQeD/2Y="
+      "integrity": "sha512-LRvkBHaJGnrcWvqsElsOhHCzj8mU39wLx5pQ0pc6s153GynCTsPdGdqsVNKAQD9sKnWj11iF7TZx9fpLwdD3fw=="
     },
     "moment-timezone": {
       "version": "0.5.21",
@@ -2945,12 +3017,14 @@
         "array-unique": {
           "version": "0.3.2",
           "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
-          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
+          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
+          "optional": true
         },
         "braces": {
           "version": "2.3.2",
           "resolved": "https://registry.npmjs.org/braces/-/braces-2.3.2.tgz",
           "integrity": "sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==",
+          "optional": true,
           "requires": {
             "arr-flatten": "1.1.0",
             "array-unique": "0.3.2",
@@ -2968,6 +3042,7 @@
               "version": "2.0.1",
               "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
               "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "optional": true,
               "requires": {
                 "is-extendable": "0.1.1"
               }
@@ -3127,6 +3202,7 @@
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-4.0.0.tgz",
           "integrity": "sha1-1USBHUKPmOsGpj3EAtJAPDKMOPc=",
+          "optional": true,
           "requires": {
             "extend-shallow": "2.0.1",
             "is-number": "3.0.0",
@@ -3138,6 +3214,7 @@
               "version": "2.0.1",
               "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
               "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+              "optional": true,
               "requires": {
                 "is-extendable": "0.1.1"
               }
@@ -3197,7 +3274,8 @@
         "is-extglob": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
-          "integrity": "sha1-qIwCU1eR8C7TfHahueqXc8gz+MI="
+          "integrity": "sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=",
+          "optional": true
         },
         "is-glob": {
           "version": "4.0.0",
@@ -3212,6 +3290,7 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
           "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "optional": true,
           "requires": {
             "kind-of": "3.2.2"
           },
@@ -3220,6 +3299,7 @@
               "version": "3.2.2",
               "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
               "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+              "optional": true,
               "requires": {
                 "is-buffer": "1.1.6"
               }
@@ -3229,12 +3309,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "optional": true
         },
         "micromatch": {
           "version": "3.1.10",
@@ -3268,6 +3350,7 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/object-copy/-/object-copy-0.1.0.tgz",
       "integrity": "sha1-fn2Fi3gb18mRpBupde04EnVOmYw=",
+      "optional": true,
       "requires": {
         "copy-descriptor": "0.1.1",
         "define-property": "0.2.5",
@@ -3278,6 +3361,7 @@
           "version": "0.2.5",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "0.1.6"
           }
@@ -3288,6 +3372,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/object-visit/-/object-visit-1.0.1.tgz",
       "integrity": "sha1-95xEk68MU3e1n+OdOV5BBC3QRbs=",
+      "optional": true,
       "requires": {
         "isobject": "3.0.1"
       },
@@ -3295,7 +3380,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -3312,6 +3398,7 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/object.pick/-/object.pick-1.3.0.tgz",
       "integrity": "sha1-h6EKxMFpS9Lhy/U1kaZhQftd10c=",
+      "optional": true,
       "requires": {
         "isobject": "3.0.1"
       },
@@ -3319,7 +3406,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -3401,7 +3489,8 @@
     "pascalcase": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/pascalcase/-/pascalcase-0.1.1.tgz",
-      "integrity": "sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ="
+      "integrity": "sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ=",
+      "optional": true
     },
     "path-dirname": {
       "version": "1.0.2",
@@ -3451,7 +3540,7 @@
     "pretty-data": {
       "version": "0.40.0",
       "resolved": "https://registry.npmjs.org/pretty-data/-/pretty-data-0.40.0.tgz",
-      "integrity": "sha1-Vyqo6iNGdGerlLa1Jmpv2cj93XI="
+      "integrity": "sha512-YFLnEdDEDnkt/GEhet5CYZHCvALw6+Elyb/tp8kQG03ZSIuzeaDWpZYndCXwgqu4NAjh1PI534dhDS1mHarRnQ=="
     },
     "pretty-hrtime": {
       "version": "1.0.3",
@@ -3806,6 +3895,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz",
       "integrity": "sha512-J6SDjUgDxQj5NusnOtdFxDwN/+HWykR8GELwctJ7mdqhcyy1xEc4SRFHUXvxTp661YaVKAjfRLZ9cCqS6tn32A==",
+      "optional": true,
       "requires": {
         "extend-shallow": "3.0.2",
         "safe-regex": "1.1.0"
@@ -3837,12 +3927,14 @@
     "resolve-url": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz",
-      "integrity": "sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo="
+      "integrity": "sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=",
+      "optional": true
     },
     "ret": {
       "version": "0.1.15",
       "resolved": "https://registry.npmjs.org/ret/-/ret-0.1.15.tgz",
-      "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg=="
+      "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==",
+      "optional": true
     },
     "right-align": {
       "version": "0.1.3",
@@ -3876,6 +3968,7 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz",
       "integrity": "sha1-QKNmnzsHfR6UPURinhV91IAjvy4=",
+      "optional": true,
       "requires": {
         "ret": "0.1.15"
       }
@@ -3943,6 +4036,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
       "integrity": "sha512-hw0yxk9GT/Hr5yJEYnHNKYXkIA8mVJgd9ditYZCe16ZczcaELYYcfvaXesNACk2O8O0nTiPQcQhGUQj8JLzeeg==",
+      "optional": true,
       "requires": {
         "extend-shallow": "2.0.1",
         "is-extendable": "0.1.1",
@@ -3954,6 +4048,7 @@
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "optional": true,
           "requires": {
             "is-extendable": "0.1.1"
           }
@@ -3969,6 +4064,7 @@
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
       "integrity": "sha512-FtyOnWN/wCHTVXOMwvSv26d+ko5vWlIDD6zoUJ7LW8vh+ZBC8QdljveRP+crNrtBwioEUWy/4dMtbBjA4ioNlg==",
+      "optional": true,
       "requires": {
         "base": "0.11.2",
         "debug": "2.6.9",
@@ -3984,6 +4080,7 @@
           "version": "0.2.5",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "0.1.6"
           }
@@ -3992,6 +4089,7 @@
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "optional": true,
           "requires": {
             "is-extendable": "0.1.1"
           }
@@ -4002,6 +4100,7 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/snapdragon-node/-/snapdragon-node-2.1.1.tgz",
       "integrity": "sha512-O27l4xaMYt/RSQ5TR3vpWCAB5Kb/czIcqUFOM/C4fYcLnbZUc1PkjTAMjof2pBWaSTwOUd6qUHcFGVGj7aIwnw==",
+      "optional": true,
       "requires": {
         "define-property": "1.0.0",
         "isobject": "3.0.1",
@@ -4012,6 +4111,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
           "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "1.0.2"
           }
@@ -4020,6 +4120,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
           "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -4028,6 +4129,7 @@
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
           "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "optional": true,
           "requires": {
             "kind-of": "6.0.2"
           }
@@ -4036,6 +4138,7 @@
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
           "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "optional": true,
           "requires": {
             "is-accessor-descriptor": "1.0.0",
             "is-data-descriptor": "1.0.0",
@@ -4045,12 +4148,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "optional": true
         }
       }
     },
@@ -4058,6 +4163,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/snapdragon-util/-/snapdragon-util-3.0.1.tgz",
       "integrity": "sha512-mbKkMdQKsjX4BAL4bRYTj21edOf8cN7XHdYUJEe+Zn99hVEYcMvKPct1IqNe7+AZPirn8BCDOQBHQZknqmKlZQ==",
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2"
       }
@@ -4071,6 +4177,7 @@
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.2.tgz",
       "integrity": "sha512-MjqsvNwyz1s0k81Goz/9vRBe9SZdB09Bdw+/zYyO+3CuPk6fouTaxscHkgtE8jKvf01kVfl8riHzERQ/kefaSA==",
+      "optional": true,
       "requires": {
         "atob": "2.1.1",
         "decode-uri-component": "0.2.0",
@@ -4082,12 +4189,14 @@
     "source-map-url": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.0.tgz",
-      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM="
+      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
+      "optional": true
     },
     "split-string": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/split-string/-/split-string-3.1.0.tgz",
       "integrity": "sha512-NzNVhJDYpwceVVii8/Hu6DKfD2G+NrQHlS/V/qgv763EYudVwEcMQNxd2lh+0VrUByXN/oJkl5grOhYWvQUYiw==",
+      "optional": true,
       "requires": {
         "extend-shallow": "3.0.2"
       }
@@ -4101,6 +4210,7 @@
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/static-extend/-/static-extend-0.1.2.tgz",
       "integrity": "sha1-YICcOcv/VTNyJv1eC1IPNB8ftcY=",
+      "optional": true,
       "requires": {
         "define-property": "0.2.5",
         "object-copy": "0.1.0"
@@ -4110,6 +4220,7 @@
           "version": "0.2.5",
           "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "0.1.6"
           }
@@ -4273,6 +4384,7 @@
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/to-object-path/-/to-object-path-0.3.0.tgz",
       "integrity": "sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=",
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2"
       }
@@ -4281,6 +4393,7 @@
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/to-regex/-/to-regex-3.0.2.tgz",
       "integrity": "sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==",
+      "optional": true,
       "requires": {
         "define-property": "2.0.2",
         "extend-shallow": "3.0.2",
@@ -4292,6 +4405,7 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-2.1.1.tgz",
       "integrity": "sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=",
+      "optional": true,
       "requires": {
         "is-number": "3.0.0",
         "repeat-string": "1.6.1"
@@ -4301,6 +4415,7 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
           "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "optional": true,
           "requires": {
             "kind-of": "3.2.2"
           }
@@ -4420,6 +4535,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
       "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
+      "optional": true,
       "requires": {
         "arr-union": "3.1.0",
         "get-value": "2.0.6",
@@ -4431,6 +4547,7 @@
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "optional": true,
           "requires": {
             "is-extendable": "0.1.1"
           }
@@ -4439,6 +4556,7 @@
           "version": "0.4.3",
           "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
           "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
+          "optional": true,
           "requires": {
             "extend-shallow": "2.0.1",
             "is-extendable": "0.1.1",
@@ -4457,6 +4575,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
       "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
+      "optional": true,
       "requires": {
         "has-value": "0.3.1",
         "isobject": "3.0.1"
@@ -4466,6 +4585,7 @@
           "version": "0.3.1",
           "resolved": "https://registry.npmjs.org/has-value/-/has-value-0.3.1.tgz",
           "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
+          "optional": true,
           "requires": {
             "get-value": "2.0.6",
             "has-values": "0.1.4",
@@ -4476,6 +4596,7 @@
               "version": "2.1.0",
               "resolved": "https://registry.npmjs.org/isobject/-/isobject-2.1.0.tgz",
               "integrity": "sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=",
+              "optional": true,
               "requires": {
                 "isarray": "1.0.0"
               }
@@ -4485,12 +4606,14 @@
         "has-values": {
           "version": "0.1.4",
           "resolved": "https://registry.npmjs.org/has-values/-/has-values-0.1.4.tgz",
-          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E="
+          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E=",
+          "optional": true
         },
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -4508,17 +4631,19 @@
     "urix": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
-      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI="
+      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=",
+      "optional": true
     },
     "url-join": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-1.1.0.tgz",
-      "integrity": "sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.0.tgz",
+      "integrity": "sha512-EGXjXJZhIHiQMK2pQukuFcL303nskqIRzWvPvV5O8miOfwoUb9G+a/Cld60kUyeaybEI94wvVClT10DtfeAExA=="
     },
     "use": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
-      "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ=="
+      "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==",
+      "optional": true
     },
     "util-deprecate": {
       "version": "1.0.2",
diff --git a/package.json b/package.json
index 5637311..bbc4bd6 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "hexo-generator-feed": "^1.2.2",
     "hexo-generator-index": "^0.2.0",
     "hexo-generator-robotstxt": "^0.2.0",
-    "hexo-generator-seo-friendly-sitemap": "0.0.21",
+    "hexo-generator-seo-friendly-sitemap": "0.2.1",
     "hexo-generator-tag": "^0.2.0",
     "hexo-prism-plugin": "^2.3.0",
     "hexo-renderer-jade": "^0.4.1",
diff --git a/yarn.lock b/yarn.lock
index 8f0f13c..2cccf04 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -36,7 +36,7 @@ accepts@~1.3.5:
 
 acorn-globals@^1.0.3:
   version "1.0.9"
-  resolved "http://registry.npmjs.org/acorn-globals/-/acorn-globals-1.0.9.tgz#55bb5e98691507b74579d0513413217c380c54cf"
+  resolved "https://registry.npmjs.org/acorn-globals/-/acorn-globals-1.0.9.tgz#55bb5e98691507b74579d0513413217c380c54cf"
   dependencies:
     acorn "^2.1.0"
 
@@ -48,15 +48,15 @@ acorn-globals@^3.0.0:
 
 acorn@^1.0.1:
   version "1.2.2"
-  resolved "http://registry.npmjs.org/acorn/-/acorn-1.2.2.tgz#c8ce27de0acc76d896d2b1fad3df588d9e82f014"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-1.2.2.tgz#c8ce27de0acc76d896d2b1fad3df588d9e82f014"
 
 acorn@^2.1.0:
   version "2.7.0"
-  resolved "http://registry.npmjs.org/acorn/-/acorn-2.7.0.tgz#ab6e7d9d886aaca8b085bc3312b79a198433f0e7"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-2.7.0.tgz#ab6e7d9d886aaca8b085bc3312b79a198433f0e7"
 
 acorn@^3.1.0:
   version "3.3.0"
-  resolved "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
 acorn@^4.0.4, acorn@~4.0.2:
   version "4.0.13"
@@ -260,13 +260,9 @@ binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
 
-bluebird@^3.0.6, bluebird@^3.2.2, bluebird@^3.4.0:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
-
-bluebird@^3.3.1, bluebird@^3.5.0:
-  version "3.5.2"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.2.tgz#1be0908e054a751754549c270489c1505d4ab15a"
+bluebird@3.5.4, bluebird@^3.0.6, bluebird@^3.2.2, bluebird@^3.4.0, bluebird@^3.5.0:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.4.tgz#d6cc661595de30d5b3af5fcedd3c0b3ef6ec5714"
 
 boolbase@~1.0.0:
   version "1.0.0"
@@ -524,13 +520,13 @@ command-exists@^1.2.0:
 
 commander@2.8.x:
   version "2.8.1"
-  resolved "http://registry.npmjs.org/commander/-/commander-2.8.1.tgz#06be367febfda0c330aa1e2a072d3dc9762425d4"
+  resolved "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz#06be367febfda0c330aa1e2a072d3dc9762425d4"
   dependencies:
     graceful-readlink ">= 1.0.0"
 
 commander@~2.6.0:
   version "2.6.0"
-  resolved "http://registry.npmjs.org/commander/-/commander-2.6.0.tgz#9df7e52fb2a0cb0fb89058ee80c3104225f37e1d"
+  resolved "https://registry.npmjs.org/commander/-/commander-2.6.0.tgz#9df7e52fb2a0cb0fb89058ee80c3104225f37e1d"
 
 component-emitter@^1.2.1:
   version "1.2.1"
@@ -649,7 +645,7 @@ css-what@2.1:
 
 css@~1.0.8:
   version "1.0.8"
-  resolved "http://registry.npmjs.org/css/-/css-1.0.8.tgz#9386811ca82bccc9ee7fb5a732b1e2a317c8a3e7"
+  resolved "https://registry.npmjs.org/css/-/css-1.0.8.tgz#9386811ca82bccc9ee7fb5a732b1e2a317c8a3e7"
   dependencies:
     css-parse "1.0.4"
     css-stringify "1.0.5"
@@ -784,9 +780,9 @@ ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
-ejs@2.3.4:
-  version "2.3.4"
-  resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.3.4.tgz#3c76caa09664b3583b0037af9dc136e79ec68b98"
+ejs@2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.6.1.tgz#498ec0d495655abc6f23cd61868d926464071aa0"
 
 encodeurl@~1.0.1, encodeurl@~1.0.2:
   version "1.0.2"
@@ -1179,16 +1175,16 @@ hexo-generator-robotstxt@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/hexo-generator-robotstxt/-/hexo-generator-robotstxt-0.2.0.tgz#e65a68659808904295f6ad99ebf6abbbeb6a32f2"
 
-hexo-generator-seo-friendly-sitemap@0.0.21:
-  version "0.0.21"
-  resolved "https://registry.yarnpkg.com/hexo-generator-seo-friendly-sitemap/-/hexo-generator-seo-friendly-sitemap-0.0.21.tgz#752dbb2b66d104f35369cb2050163682296856aa"
+hexo-generator-seo-friendly-sitemap@0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/hexo-generator-seo-friendly-sitemap/-/hexo-generator-seo-friendly-sitemap-0.2.1.tgz#996a0c10ced51575d0d1aad59f65aad233946e87"
   dependencies:
-    bluebird "^3.3.1"
-    ejs "2.3.4"
-    lodash "^4.5.0"
-    moment "~2.11.2"
+    bluebird "3.5.4"
+    ejs "2.6.1"
+    lodash "4.17.12"
+    moment "2.24.0"
     pretty-data "0.40.0"
-    url-join "^1.1.0"
+    url-join "4.0.0"
 
 hexo-generator-tag@^0.2.0:
   version "0.2.0"
@@ -1698,17 +1694,13 @@ lodash.some@^4.4.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/lodash.some/-/lodash.some-4.6.0.tgz#1bb9f314ef6b8baded13b549169b2a945eb68e4d"
 
+lodash@4.17.12, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1:
+  version "4.17.12"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.12.tgz#a712c74fdc31f7ecb20fe44f157d802d208097ef"
+
 lodash@^3.2.0:
   version "3.10.1"
-  resolved "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
-
-lodash@^4.17.4, lodash@^4.5.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-
-lodash@^4.17.5, lodash@^4.2.1:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+  resolved "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
 longest@^1.0.1:
   version "1.0.1"
@@ -1859,13 +1851,9 @@ moment-timezone@^0.5.14:
   dependencies:
     moment ">= 2.9.0"
 
-"moment@>= 2.9.0", moment@^2.10.6, moment@^2.18.0, moment@^2.19.4:
-  version "2.22.2"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.22.2.tgz#3c257f9839fc0e93ff53149632239eb90783ff66"
-
-moment@~2.11.2:
-  version "2.11.2"
-  resolved "http://registry.npmjs.org/moment/-/moment-2.11.2.tgz#87968e5f95ac038c2e42ac959c75819cd3f52901"
+moment@2.24.0, "moment@>= 2.9.0", moment@^2.10.6, moment@^2.18.0, moment@^2.19.4:
+  version "2.24.0"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
 
 morgan@^1.6.1:
   version "1.9.0"
@@ -2195,7 +2183,7 @@ process-nextick-args@~2.0.0:
 
 promise@^6.0.1:
   version "6.1.0"
-  resolved "http://registry.npmjs.org/promise/-/promise-6.1.0.tgz#2ce729f6b94b45c26891ad0602c5c90e04c6eef6"
+  resolved "https://registry.npmjs.org/promise/-/promise-6.1.0.tgz#2ce729f6b94b45c26891ad0602c5c90e04c6eef6"
   dependencies:
     asap "~1.0.0"
 
@@ -2207,7 +2195,7 @@ promise@^7.0.1:
 
 promise@~2.0:
   version "2.0.0"
-  resolved "http://registry.npmjs.org/promise/-/promise-2.0.0.tgz#46648aa9d605af5d2e70c3024bf59436da02b80e"
+  resolved "https://registry.npmjs.org/promise/-/promise-2.0.0.tgz#46648aa9d605af5d2e70c3024bf59436da02b80e"
   dependencies:
     is-promise "~1"
 
@@ -2331,7 +2319,7 @@ rc@^1.2.7:
 
 readable-stream@1.1:
   version "1.1.13"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.13.tgz#f6eef764f514c89e2b9e23146a75ba106756d23e"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.13.tgz#f6eef764f514c89e2b9e23146a75ba106756d23e"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.1"
@@ -2801,14 +2789,14 @@ uglify-js@^2.4.19, uglify-js@^2.6.1:
 
 uglify-js@~2.2.5:
   version "2.2.5"
-  resolved "http://registry.npmjs.org/uglify-js/-/uglify-js-2.2.5.tgz#a6e02a70d839792b9780488b7b8b184c095c99c7"
+  resolved "https://registry.npmjs.org/uglify-js/-/uglify-js-2.2.5.tgz#a6e02a70d839792b9780488b7b8b184c095c99c7"
   dependencies:
     optimist "~0.3.5"
     source-map "~0.1.7"
 
 uglify-js@~2.4:
   version "2.4.24"
-  resolved "http://registry.npmjs.org/uglify-js/-/uglify-js-2.4.24.tgz#fad5755c1e1577658bb06ff9ab6e548c95bebd6e"
+  resolved "https://registry.npmjs.org/uglify-js/-/uglify-js-2.4.24.tgz#fad5755c1e1577658bb06ff9ab6e548c95bebd6e"
   dependencies:
     async "~0.2.6"
     source-map "0.1.34"
@@ -2851,9 +2839,9 @@ urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
 
-url-join@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-1.1.0.tgz#741c6c2f4596c4830d6718460920d0c92202dc78"
+url-join@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-4.0.0.tgz#4d3340e807d3773bda9991f8305acdcc2a665d2a"
 
 use@^3.1.0:
   version "3.1.1"
@@ -2974,7 +2962,7 @@ yargs@~3.10.0:
 
 yargs@~3.5.4:
   version "3.5.4"
-  resolved "http://registry.npmjs.org/yargs/-/yargs-3.5.4.tgz#d8aff8f665e94c34bd259bdebd1bfaf0ddd35361"
+  resolved "https://registry.npmjs.org/yargs/-/yargs-3.5.4.tgz#d8aff8f665e94c34bd259bdebd1bfaf0ddd35361"
   dependencies:
     camelcase "^1.0.2"
     decamelize "^1.0.0"