expose MatestackUiCore to the global js namespace

#343 (comment)

Author: fiedl

app/javascript/matestack-ui-core/index.js

@@ -7,10 +7,14 @@ import matestackEventHub from '../../../app/concepts/matestack/ui/core/js/event-
 import componentMixin from '../../../app/concepts/matestack/ui/core/component/component'
 import matestackUiCore from '../../../app/concepts/matestack/ui/core/js/core'
 
-export {
+const MatestackUiCore = {
   Vue,
   Vuex,
   axios,
   matestackEventHub,
   componentMixin
 }
+
+window.MatestackUiCore = MatestackUiCore
+
+export default MatestackUiCore

app/javascript/packs/matestack-ui-core.js

@@ -1 +1,2 @@
-require('../matestack-ui-core/index')
+require('../matestack-ui-core/index')
+module.exports = MatestackUiCore

builder/config/webpack/production.js

@@ -7,8 +7,7 @@ const customConfig = {
   output: {
     filename: 'matestack-ui-core.min.js',
     libraryTarget: 'var',
-    library: 'MatestackUiCore',
-    umdNamedDefine: false
+    library: 'MatestackUiCore'
   }
 };