demo(groupBy): change demo theme to select2

Author: dimirc

examples/demo-groupby.html

@@ -66,7 +66,7 @@ <h3>Select2 theme</h3>
   <p>Selected: {{person.selected}}</p>
 
   <h2>Grouped using a string (group-by="'country'")</h2>
-  <ui-select ng-model="person.selected" theme="bootstrap" ng-disabled="disabled" style="min-width: 300px;">
+  <ui-select ng-model="person.selected" theme="select2" ng-disabled="disabled" style="min-width: 300px;">
     <ui-select-match placeholder="Select a person in the list or search his name/age...">{{$select.selected.name}}</ui-select-match>
     <ui-select-choices group-by="'country'" repeat="person in people | propsFilter: {name: $select.search, age: $select.search}">
       <div ng-bind-html="person.name | highlight: $select.search"></div>
@@ -78,7 +78,7 @@ <h2>Grouped using a string (group-by="'country'")</h2>
     </ui-select>
 
   <h2>Grouped using a function (group-by="someGroupFn")</h2>
-  <ui-select ng-model="person.selected" theme="bootstrap" ng-disabled="disabled" style="min-width: 300px;">
+  <ui-select ng-model="person.selected" theme="select2" ng-disabled="disabled" style="min-width: 300px;">
     <ui-select-match placeholder="Select a person in the list or search his name/age...">{{$select.selected.name}}</ui-select-match>
     <ui-select-choices group-by="someGroupFn" repeat="person in people | propsFilter: {name: $select.search, age: $select.search}">
       <div ng-bind-html="person.name | highlight: $select.search"></div>
@@ -90,7 +90,7 @@ <h2>Grouped using a function (group-by="someGroupFn")</h2>
     </ui-select>
 
   <h2>Simple (no groupBy)</h2>
-  <ui-select ng-model="person.selected" theme="bootstrap" ng-disabled="disabled" style="min-width: 300px;">
+  <ui-select ng-model="person.selected" theme="select2" ng-disabled="disabled" style="min-width: 300px;">
     <ui-select-match placeholder="Select a person in the list or search his name/age...">{{$select.selected.name}}</ui-select-match>
     <ui-select-choices repeat="person in people | propsFilter: {name: $select.search, age: $select.search}">
       <div ng-bind-html="person.name | highlight: $select.search"></div>