Antwar: sort list of loaders/plugins

Relates to #607.

Author: simon04

antwar.config.js

@@ -233,7 +233,7 @@ function combineContexts(context1, context2) {
   webpackContext.keys = () => {
     let keys1 = context1.keys();
     let keys2 = context2.keys();
-    return _.chain(keys1).concat(keys2).uniq().value();
+    return _.chain(keys1).concat(keys2).sortBy().uniq().value();
   };
   return webpackContext;
 }