Update Model.java

Fixing bug where proxy onRemove not being called when proxy  removed

Author: ibb

src/org/puremvc/java/multicore/core/model/Model.java

@@ -119,8 +119,13 @@ public void registerProxy(IProxy proxy) {
 	 * @param proxy
 	 *            name of the <code>Proxy</code> instance to be removed.
 	 */
-	public IProxy removeProxy(String proxy) {
-		return (IProxy) this.proxyMap.remove(proxy);
+	public IProxy removeProxy(String proxyName) {
+		IProxy proxy = (IProxy) this.proxyMap.get(proxyName);
+		if(proxy != null){
+			this.proxyMap.remove(proxyName);
+			proxy.onRemove();
+		}
+		return proxy;
 	}
 
 	/**