Refactored AEConfig (#2633)

Added a singleton getter instead the public field.
Reduced all fields to private.
Replaced field access with getters.
Added setters where necessary (Dimension/Biome Registration)
Added config options to disable more features.
Splitted Enum name from the config key.
Changed FacadeConfig and Networkhandler similar to AEConfig.init().

src/main/java/appeng/container/implementations/ContainerNetworkStatus.java

@@ -137,7 +137,7 @@ public class ContainerNetworkStatus extends AEBaseContainer
 				{
 					if( c instanceof EntityPlayer )
 					{
-						NetworkHandler.instance.sendTo( piu, (EntityPlayerMP) c );
+						NetworkHandler.instance().sendTo( piu, (EntityPlayerMP) c );
 					}
 				}
 			}