diff --git a/package-lock.json b/package-lock.json
index 78726d0..af5fbb1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -149,9 +149,9 @@
       "resolved": "https://registry.npmjs.org/babel-helper-builder-binary-assignment-operator-visitor/-/babel-helper-builder-binary-assignment-operator-visitor-6.24.1.tgz",
       "integrity": "sha1-zORReto1b0IgvK6KAsKzRvmlZmQ=",
       "requires": {
-        "babel-helper-explode-assignable-expression": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-explode-assignable-expression": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-call-delegate": {
@@ -159,10 +159,10 @@
       "resolved": "https://registry.npmjs.org/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz",
       "integrity": "sha1-7Oaqzdx25Bw0YfiL/Fdb0Nqi340=",
       "requires": {
-        "babel-helper-hoist-variables": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-hoist-variables": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-define-map": {
@@ -170,10 +170,10 @@
       "resolved": "https://registry.npmjs.org/babel-helper-define-map/-/babel-helper-define-map-6.26.0.tgz",
       "integrity": "sha1-pfVtq0GiX5fstJjH66ypgZ+Vvl8=",
       "requires": {
-        "babel-helper-function-name": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "lodash": "4.17.4"
+        "babel-helper-function-name": "^6.24.1",
+        "babel-runtime": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "lodash": "^4.17.4"
       }
     },
     "babel-helper-explode-assignable-expression": {
@@ -181,9 +181,9 @@
       "resolved": "https://registry.npmjs.org/babel-helper-explode-assignable-expression/-/babel-helper-explode-assignable-expression-6.24.1.tgz",
       "integrity": "sha1-8luCz33BBDPFX3BZLVdGQArCLKo=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-function-name": {
@@ -191,11 +191,11 @@
       "resolved": "https://registry.npmjs.org/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz",
       "integrity": "sha1-00dbjAPtmCQqJbSDUasYOZ01gKk=",
       "requires": {
-        "babel-helper-get-function-arity": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-get-function-arity": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-get-function-arity": {
@@ -203,8 +203,8 @@
       "resolved": "https://registry.npmjs.org/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz",
       "integrity": "sha1-j3eCqpNAfEHTqlCQj4mwMbG2hT0=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-hoist-variables": {
@@ -212,8 +212,8 @@
       "resolved": "https://registry.npmjs.org/babel-helper-hoist-variables/-/babel-helper-hoist-variables-6.24.1.tgz",
       "integrity": "sha1-HssnaJydJVE+rbyZFKc/VAi+enY=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-optimise-call-expression": {
@@ -221,8 +221,8 @@
       "resolved": "https://registry.npmjs.org/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz",
       "integrity": "sha1-96E0J7qfc/j0+pk8VKl4gtEkQlc=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-regex": {
@@ -230,9 +230,9 @@
       "resolved": "https://registry.npmjs.org/babel-helper-regex/-/babel-helper-regex-6.26.0.tgz",
       "integrity": "sha1-MlxZ+QL4LyS3T6zu0DY5VPZJXnI=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "lodash": "4.17.4"
+        "babel-runtime": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "lodash": "^4.17.4"
       }
     },
     "babel-helper-remap-async-to-generator": {
@@ -240,11 +240,11 @@
       "resolved": "https://registry.npmjs.org/babel-helper-remap-async-to-generator/-/babel-helper-remap-async-to-generator-6.24.1.tgz",
       "integrity": "sha1-XsWBgnrXI/7N04HxySg5BnbkVRs=",
       "requires": {
-        "babel-helper-function-name": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-function-name": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helper-replace-supers": {
@@ -252,12 +252,12 @@
       "resolved": "https://registry.npmjs.org/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz",
       "integrity": "sha1-v22/5Dk40XNpohPKiov3S2qQqxo=",
       "requires": {
-        "babel-helper-optimise-call-expression": "6.24.1",
-        "babel-messages": "6.23.0",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-optimise-call-expression": "^6.24.1",
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-helpers": {
@@ -282,7 +282,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-check-es2015-constants/-/babel-plugin-check-es2015-constants-6.22.0.tgz",
       "integrity": "sha1-NRV7EBQm/S/9PaP3XH0ekYNbv4o=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-syntax-async-functions": {
@@ -305,9 +305,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-async-to-generator/-/babel-plugin-transform-async-to-generator-6.24.1.tgz",
       "integrity": "sha1-ZTbjeK/2yx1VF6wOQOs+n8jQh2E=",
       "requires": {
-        "babel-helper-remap-async-to-generator": "6.24.1",
-        "babel-plugin-syntax-async-functions": "6.13.0",
-        "babel-runtime": "6.26.0"
+        "babel-helper-remap-async-to-generator": "^6.24.1",
+        "babel-plugin-syntax-async-functions": "^6.8.0",
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-arrow-functions": {
@@ -315,7 +315,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz",
       "integrity": "sha1-RSaSy3EdX3ncf4XkQM5BufJE0iE=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-block-scoped-functions": {
@@ -323,7 +323,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-block-scoped-functions/-/babel-plugin-transform-es2015-block-scoped-functions-6.22.0.tgz",
       "integrity": "sha1-u8UbSflk1wy42OC5ToICRs46YUE=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-block-scoping": {
@@ -331,11 +331,11 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz",
       "integrity": "sha1-1w9SmcEwjQXBL0Y4E7CgnnOxiV8=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0",
-        "lodash": "4.17.4"
+        "babel-runtime": "^6.26.0",
+        "babel-template": "^6.26.0",
+        "babel-traverse": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "lodash": "^4.17.4"
       }
     },
     "babel-plugin-transform-es2015-classes": {
@@ -343,15 +343,15 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz",
       "integrity": "sha1-WkxYpQyclGHlZLSyo7+ryXolhNs=",
       "requires": {
-        "babel-helper-define-map": "6.26.0",
-        "babel-helper-function-name": "6.24.1",
-        "babel-helper-optimise-call-expression": "6.24.1",
-        "babel-helper-replace-supers": "6.24.1",
-        "babel-messages": "6.23.0",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-define-map": "^6.24.1",
+        "babel-helper-function-name": "^6.24.1",
+        "babel-helper-optimise-call-expression": "^6.24.1",
+        "babel-helper-replace-supers": "^6.24.1",
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-computed-properties": {
@@ -359,8 +359,8 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz",
       "integrity": "sha1-b+Ko0WiV1WNPTNmZttNICjCBWbM=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-destructuring": {
@@ -368,7 +368,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz",
       "integrity": "sha1-mXux8auWf2gtKwh2/jWNYOdlxW0=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-duplicate-keys": {
@@ -376,8 +376,8 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz",
       "integrity": "sha1-c+s9MQypaePvnskcU3QabxV2Qj4=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-for-of": {
@@ -385,7 +385,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz",
       "integrity": "sha1-9HyVsrYT3x0+zC/bdXNiPHUkhpE=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-function-name": {
@@ -393,9 +393,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz",
       "integrity": "sha1-g0yJhTvDaxrw86TF26qU/Y6sqos=",
       "requires": {
-        "babel-helper-function-name": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-function-name": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-literals": {
@@ -403,7 +403,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-literals/-/babel-plugin-transform-es2015-literals-6.22.0.tgz",
       "integrity": "sha1-T1SgLWzWbPkVKAAZox0xklN3yi4=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-modules-amd": {
@@ -411,20 +411,20 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-amd/-/babel-plugin-transform-es2015-modules-amd-6.24.1.tgz",
       "integrity": "sha1-Oz5UAXI5hC1tGcMBHEvS8AoA0VQ=",
       "requires": {
-        "babel-plugin-transform-es2015-modules-commonjs": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0"
+        "babel-plugin-transform-es2015-modules-commonjs": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-modules-commonjs": {
-      "version": "6.26.0",
-      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz",
-      "integrity": "sha1-DYOUApt9xqvhqX7xgeAHWN0uXYo=",
+      "version": "6.26.2",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.2.tgz",
+      "integrity": "sha512-CV9ROOHEdrjcwhIaJNBGMBCodN+1cfkwtM1SbUHmvyy35KGT7fohbpOxkE2uLz1o6odKK2Ck/tz47z+VqQfi9Q==",
       "requires": {
-        "babel-plugin-transform-strict-mode": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-plugin-transform-strict-mode": "^6.24.1",
+        "babel-runtime": "^6.26.0",
+        "babel-template": "^6.26.0",
+        "babel-types": "^6.26.0"
       }
     },
     "babel-plugin-transform-es2015-modules-systemjs": {
@@ -432,9 +432,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz",
       "integrity": "sha1-/4mhQrkRmpBhlfXxBuzzBdlAfSM=",
       "requires": {
-        "babel-helper-hoist-variables": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0"
+        "babel-helper-hoist-variables": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-modules-umd": {
@@ -442,9 +442,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz",
       "integrity": "sha1-rJl+YoXNGO1hdq22B9YCNErThGg=",
       "requires": {
-        "babel-plugin-transform-es2015-modules-amd": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0"
+        "babel-plugin-transform-es2015-modules-amd": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-object-super": {
@@ -452,8 +452,8 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz",
       "integrity": "sha1-JM72muIcuDp/hgPa0CH1cusnj40=",
       "requires": {
-        "babel-helper-replace-supers": "6.24.1",
-        "babel-runtime": "6.26.0"
+        "babel-helper-replace-supers": "^6.24.1",
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-parameters": {
@@ -461,12 +461,12 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz",
       "integrity": "sha1-V6w1GrScrxSpfNE7CfZv3wpiXys=",
       "requires": {
-        "babel-helper-call-delegate": "6.24.1",
-        "babel-helper-get-function-arity": "6.24.1",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-call-delegate": "^6.24.1",
+        "babel-helper-get-function-arity": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1",
+        "babel-traverse": "^6.24.1",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-shorthand-properties": {
@@ -474,8 +474,8 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz",
       "integrity": "sha1-JPh11nIch2YbvZmkYi5R8U3jiqA=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-spread": {
@@ -483,7 +483,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-spread/-/babel-plugin-transform-es2015-spread-6.22.0.tgz",
       "integrity": "sha1-1taKmfia7cRTbIGlQujdnxdG+NE=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-sticky-regex": {
@@ -491,9 +491,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz",
       "integrity": "sha1-AMHNsaynERLN8M9hJsLta0V8zbw=",
       "requires": {
-        "babel-helper-regex": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-helper-regex": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-plugin-transform-es2015-template-literals": {
@@ -501,7 +501,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-template-literals/-/babel-plugin-transform-es2015-template-literals-6.22.0.tgz",
       "integrity": "sha1-qEs0UPfp+PH2g51taH2oS7EjbY0=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-typeof-symbol": {
@@ -509,7 +509,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz",
       "integrity": "sha1-3sCfHN3/lLUqxz1QXITfWdzOs3I=",
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-es2015-unicode-regex": {
@@ -517,9 +517,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz",
       "integrity": "sha1-04sS9C6nMj9yk4fxinxa4frrNek=",
       "requires": {
-        "babel-helper-regex": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "regexpu-core": "2.0.0"
+        "babel-helper-regex": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "regexpu-core": "^2.0.0"
       }
     },
     "babel-plugin-transform-exponentiation-operator": {
@@ -527,9 +527,9 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-exponentiation-operator/-/babel-plugin-transform-exponentiation-operator-6.24.1.tgz",
       "integrity": "sha1-KrDJx/MJj6SJB3cruBP+QejeOg4=",
       "requires": {
-        "babel-helper-builder-binary-assignment-operator-visitor": "6.24.1",
-        "babel-plugin-syntax-exponentiation-operator": "6.13.0",
-        "babel-runtime": "6.26.0"
+        "babel-helper-builder-binary-assignment-operator-visitor": "^6.24.1",
+        "babel-plugin-syntax-exponentiation-operator": "^6.8.0",
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-transform-regenerator": {
@@ -537,7 +537,7 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz",
       "integrity": "sha1-4HA2lvveJ/Cj78rPi03KL3s6jy8=",
       "requires": {
-        "regenerator-transform": "0.10.1"
+        "regenerator-transform": "^0.10.0"
       }
     },
     "babel-plugin-transform-strict-mode": {
@@ -545,8 +545,8 @@
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-strict-mode/-/babel-plugin-transform-strict-mode-6.24.1.tgz",
       "integrity": "sha1-1fr3qleKZbvlkc9e2uBKDGcCB1g=",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.24.1"
       }
     },
     "babel-polyfill": {
@@ -567,40 +567,40 @@
       }
     },
     "babel-preset-env": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/babel-preset-env/-/babel-preset-env-1.6.0.tgz",
-      "integrity": "sha512-OVgtQRuOZKckrILgMA5rvctvFZPv72Gua9Rt006AiPoB0DJKGN07UmaQA+qRrYgK71MVct8fFhT0EyNWYorVew==",
-      "requires": {
-        "babel-plugin-check-es2015-constants": "6.22.0",
-        "babel-plugin-syntax-trailing-function-commas": "6.22.0",
-        "babel-plugin-transform-async-to-generator": "6.24.1",
-        "babel-plugin-transform-es2015-arrow-functions": "6.22.0",
-        "babel-plugin-transform-es2015-block-scoped-functions": "6.22.0",
-        "babel-plugin-transform-es2015-block-scoping": "6.26.0",
-        "babel-plugin-transform-es2015-classes": "6.24.1",
-        "babel-plugin-transform-es2015-computed-properties": "6.24.1",
-        "babel-plugin-transform-es2015-destructuring": "6.23.0",
-        "babel-plugin-transform-es2015-duplicate-keys": "6.24.1",
-        "babel-plugin-transform-es2015-for-of": "6.23.0",
-        "babel-plugin-transform-es2015-function-name": "6.24.1",
-        "babel-plugin-transform-es2015-literals": "6.22.0",
-        "babel-plugin-transform-es2015-modules-amd": "6.24.1",
-        "babel-plugin-transform-es2015-modules-commonjs": "6.26.0",
-        "babel-plugin-transform-es2015-modules-systemjs": "6.24.1",
-        "babel-plugin-transform-es2015-modules-umd": "6.24.1",
-        "babel-plugin-transform-es2015-object-super": "6.24.1",
-        "babel-plugin-transform-es2015-parameters": "6.24.1",
-        "babel-plugin-transform-es2015-shorthand-properties": "6.24.1",
-        "babel-plugin-transform-es2015-spread": "6.22.0",
-        "babel-plugin-transform-es2015-sticky-regex": "6.24.1",
-        "babel-plugin-transform-es2015-template-literals": "6.22.0",
-        "babel-plugin-transform-es2015-typeof-symbol": "6.23.0",
-        "babel-plugin-transform-es2015-unicode-regex": "6.24.1",
-        "babel-plugin-transform-exponentiation-operator": "6.24.1",
-        "babel-plugin-transform-regenerator": "6.26.0",
-        "browserslist": "2.5.1",
-        "invariant": "2.2.2",
-        "semver": "5.4.1"
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/babel-preset-env/-/babel-preset-env-1.7.0.tgz",
+      "integrity": "sha512-9OR2afuKDneX2/q2EurSftUYM0xGu4O2D9adAhVfADDhrYDaxXV0rBbevVYoY9n6nyX1PmQW/0jtpJvUNr9CHg==",
+      "requires": {
+        "babel-plugin-check-es2015-constants": "^6.22.0",
+        "babel-plugin-syntax-trailing-function-commas": "^6.22.0",
+        "babel-plugin-transform-async-to-generator": "^6.22.0",
+        "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
+        "babel-plugin-transform-es2015-block-scoped-functions": "^6.22.0",
+        "babel-plugin-transform-es2015-block-scoping": "^6.23.0",
+        "babel-plugin-transform-es2015-classes": "^6.23.0",
+        "babel-plugin-transform-es2015-computed-properties": "^6.22.0",
+        "babel-plugin-transform-es2015-destructuring": "^6.23.0",
+        "babel-plugin-transform-es2015-duplicate-keys": "^6.22.0",
+        "babel-plugin-transform-es2015-for-of": "^6.23.0",
+        "babel-plugin-transform-es2015-function-name": "^6.22.0",
+        "babel-plugin-transform-es2015-literals": "^6.22.0",
+        "babel-plugin-transform-es2015-modules-amd": "^6.22.0",
+        "babel-plugin-transform-es2015-modules-commonjs": "^6.23.0",
+        "babel-plugin-transform-es2015-modules-systemjs": "^6.23.0",
+        "babel-plugin-transform-es2015-modules-umd": "^6.23.0",
+        "babel-plugin-transform-es2015-object-super": "^6.22.0",
+        "babel-plugin-transform-es2015-parameters": "^6.23.0",
+        "babel-plugin-transform-es2015-shorthand-properties": "^6.22.0",
+        "babel-plugin-transform-es2015-spread": "^6.22.0",
+        "babel-plugin-transform-es2015-sticky-regex": "^6.22.0",
+        "babel-plugin-transform-es2015-template-literals": "^6.22.0",
+        "babel-plugin-transform-es2015-typeof-symbol": "^6.23.0",
+        "babel-plugin-transform-es2015-unicode-regex": "^6.22.0",
+        "babel-plugin-transform-exponentiation-operator": "^6.22.0",
+        "babel-plugin-transform-regenerator": "^6.22.0",
+        "browserslist": "^3.2.6",
+        "invariant": "^2.2.2",
+        "semver": "^5.3.0"
       }
     },
     "babel-register": {
@@ -719,12 +719,12 @@
       }
     },
     "browserslist": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-2.5.1.tgz",
-      "integrity": "sha512-jAvM2ku7YDJ+leAq3bFH1DE0Ylw+F+EQDq4GkqZfgPEqpWYw9ofQH85uKSB9r3Tv7XDbfqVtE+sdvKJW7IlPJA==",
+      "version": "3.2.8",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-3.2.8.tgz",
+      "integrity": "sha512-WHVocJYavUwVgVViC0ORikPHQquXwVh939TaelZ4WDqpWgTX/FsGhl/+P4qBUAGcRvtOgDgC+xftNWWp2RUTAQ==",
       "requires": {
-        "caniuse-lite": "1.0.30000746",
-        "electron-to-chromium": "1.3.26"
+        "caniuse-lite": "^1.0.30000844",
+        "electron-to-chromium": "^1.3.47"
       }
     },
     "buffer-equal-constant-time": {
@@ -747,9 +747,9 @@
       }
     },
     "caniuse-lite": {
-      "version": "1.0.30000746",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000746.tgz",
-      "integrity": "sha1-xk+Vo5Jc/TAgejCO12wa6W6gnqA="
+      "version": "1.0.30001046",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001046.tgz",
+      "integrity": "sha512-CsGjBRYWG6FvgbyGy+hBbaezpwiqIOLkxQPY4A4Ea49g1eNsnQuESB+n4QM0BKii1j80MyJ26Ir5ywTQkbRE4g=="
     },
     "catbox": {
       "version": "7.1.5",
@@ -891,9 +891,9 @@
       }
     },
     "electron-to-chromium": {
-      "version": "1.3.26",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.26.tgz",
-      "integrity": "sha1-mWQnKUhhp02cfIK5Jg6jAejALWY="
+      "version": "1.3.418",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.418.tgz",
+      "integrity": "sha512-i2QrQtHes5fK/F9QGG5XacM5WKEuR322fxTYF9e8O9Gu0mc0WmjjwGpV8c7Htso6Zf2Di18lc3SIPxmMeRFBug=="
     },
     "escape-string-regexp": {
       "version": "1.0.5",
@@ -1029,7 +1029,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.1.1",
@@ -1072,7 +1073,8 @@
         },
         "balanced-match": {
           "version": "0.4.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "bcrypt-pbkdf": {
           "version": "1.0.1",
@@ -1085,6 +1087,7 @@
         "block-stream": {
           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "inherits": "2.0.3"
           }
@@ -1092,6 +1095,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -1099,6 +1103,7 @@
         "brace-expansion": {
           "version": "1.1.7",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "0.4.2",
             "concat-map": "0.0.1"
@@ -1106,7 +1111,8 @@
         },
         "buffer-shims": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "caseless": {
           "version": "0.12.0",
@@ -1120,26 +1126,31 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "combined-stream": {
           "version": "1.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "1.0.0"
           }
         },
         "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",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "cryptiles": {
           "version": "2.0.5",
@@ -1179,7 +1190,8 @@
         },
         "delayed-stream": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "delegates": {
           "version": "1.0.0",
@@ -1201,7 +1213,8 @@
         },
         "extsprintf": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "forever-agent": {
           "version": "0.6.1",
@@ -1220,11 +1233,13 @@
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "fstream": {
           "version": "1.0.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "4.1.11",
             "inherits": "2.0.3",
@@ -1275,6 +1290,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
@@ -1286,7 +1302,8 @@
         },
         "graceful-fs": {
           "version": "4.1.11",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "har-schema": {
           "version": "1.0.5",
@@ -1320,7 +1337,8 @@
         },
         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "http-signature": {
           "version": "1.1.1",
@@ -1335,6 +1353,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -1342,7 +1361,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.4",
@@ -1352,6 +1372,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -1363,7 +1384,8 @@
         },
         "isarray": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "isstream": {
           "version": "0.1.2",
@@ -1426,11 +1448,13 @@
         },
         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.27.0"
           }
@@ -1438,17 +1462,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -1496,7 +1523,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "oauth-sign": {
           "version": "0.8.2",
@@ -1511,6 +1539,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -1536,7 +1565,8 @@
         },
         "path-is-absolute": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "performance-now": {
           "version": "0.2.0",
@@ -1545,7 +1575,8 @@
         },
         "process-nextick-args": {
           "version": "1.0.7",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "punycode": {
           "version": "1.4.1",
@@ -1578,6 +1609,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "buffer-shims": "1.0.0",
             "core-util-is": "1.0.2",
@@ -1620,13 +1652,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
         },
         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "semver": {
           "version": "5.3.0",
@@ -1677,6 +1711,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -1686,6 +1721,7 @@
         "string_decoder": {
           "version": "1.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.0.1"
           }
@@ -1698,6 +1734,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -1710,6 +1747,7 @@
         "tar": {
           "version": "2.2.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "block-stream": "0.0.9",
             "fstream": "1.0.11",
@@ -1759,7 +1797,8 @@
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "uuid": {
           "version": "3.0.1",
@@ -1784,7 +1823,8 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -2655,9 +2695,9 @@
       }
     },
     "regenerate": {
-      "version": "1.3.3",
-      "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.3.3.tgz",
-      "integrity": "sha512-jVpo1GadrDAK59t/0jRx5VxYWQEDkkEKi6+HjE3joFVLfDOh9Xrdh0dF1eSq+BI/SwvTQ44gSscJ8N5zYL61sg=="
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.4.0.tgz",
+      "integrity": "sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg=="
     },
     "regenerator-runtime": {
       "version": "0.11.0",
@@ -2669,9 +2709,9 @@
       "resolved": "https://registry.npmjs.org/regenerator-transform/-/regenerator-transform-0.10.1.tgz",
       "integrity": "sha512-PJepbvDbuK1xgIgnau7Y90cwaAmO/LCLMI2mPvaXq2heGMR3aWW5/BQvYrhJ8jgmQjXewXvBjzfqKcVOmhjZ6Q==",
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "private": "0.1.8"
+        "babel-runtime": "^6.18.0",
+        "babel-types": "^6.19.0",
+        "private": "^0.1.6"
       }
     },
     "regex-cache": {
@@ -2687,9 +2727,9 @@
       "resolved": "https://registry.npmjs.org/regexpu-core/-/regexpu-core-2.0.0.tgz",
       "integrity": "sha1-SdA4g3uNz4v6W5pCE5k45uoq4kA=",
       "requires": {
-        "regenerate": "1.3.3",
-        "regjsgen": "0.2.0",
-        "regjsparser": "0.1.5"
+        "regenerate": "^1.2.1",
+        "regjsgen": "^0.2.0",
+        "regjsparser": "^0.1.4"
       }
     },
     "regjsgen": {
@@ -2702,7 +2742,7 @@
       "resolved": "https://registry.npmjs.org/regjsparser/-/regjsparser-0.1.5.tgz",
       "integrity": "sha1-fuj4Tcb6eS0/0K4ijSS9lJ6tIFw=",
       "requires": {
-        "jsesc": "0.5.0"
+        "jsesc": "~0.5.0"
       },
       "dependencies": {
         "jsesc": {
@@ -2758,9 +2798,9 @@
       "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
     },
     "semver": {
-      "version": "5.4.1",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-5.4.1.tgz",
-      "integrity": "sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg=="
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
     },
     "set-immediate-shim": {
       "version": "1.0.1",
diff --git a/package.json b/package.json
index 7613c80..e3ee718 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "homepage": "https://github.com/hackference/conference-quiz#readme",
   "dependencies": {
     "babel-cli": "^6.26.0",
-    "babel-preset-env": "^1.6.0",
+    "babel-preset-env": "^1.7.0",
     "dotenv": "^4.0.0",
     "hapi": "^16.6.2",
     "knex": "^0.13.0",