upgraded Ember and Bootstrap, merged changes

gui/app/utils/group-by.js

@@ -0,0 +1,49 @@
+// Copyright (c) 2013 Stefan Penner and Ember App Kit Contributors
+
+// MIT License
+
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import Object from '@ember/object'
+import { get } from '@ember/object';
+import { computed } from '@ember/object';
+
+export default function(groupBy) {
+  var dependentKey = 'content.@each.' + groupBy;
+
+  return computed(dependentKey, function(){
+    var result = [];
+
+    this.get('content').forEach(function(item){
+      var hasGroup = !!result.findBy('group', get(item, groupBy));
+
+      if (!hasGroup) {
+        result.pushObject(Object.create({
+          group: get(item, groupBy),
+          content: []
+        }));
+      }
+
+      result.findBy('group', get(item, groupBy)).get('content').pushObject(item);
+    });
+
+    return result;
+  });
+}