added labels for article,topic,entity,word

vipra-ui/app/html/articles/show.html

 <div class="container" ng-cloak ng-hide="!rootModels.topicModel || state.name !== 'articles.show'">
   <div class="page-header no-border">
+    <span class="label label-default">Article</span>
     <h1 ng-bind="::article.title"></h1>
   </div>
   <div>

vipra-ui/app/html/entities/show.html

 <div class="container" ng-cloak ng-hide="!rootModels.topicModel || state.name !== 'entities.show'">
   <div class="page-header no-border">
+    <span class="label label-default">Entity</span>
     <h1 ng-bind="::entity.id"></h1>
   </div>
   <div>

vipra-ui/app/html/topics/show.html

 <div class="container" ng-cloak ng-hide="!rootModels.topicModel || state.name !== 'topics.show'">
   <div class="page-header no-border">
+    <span class="label label-default">Topic</span>
     <h1>
       <div ng-bind="topic.name" ng-hide="isRename"></div>
       <div class="input-group input-group-lg" ng-show="isRename" ng-cloak>

vipra-ui/app/html/words/show.html

 <div class="container" ng-cloak ng-hide="!rootModels.topicModel || state.name !== 'words.show'">
   <div class="page-header no-border">
+    <span class="label label-default">Word</span>
     <h1 ng-bind="::word.id"></h1>
   </div>
 </div>

vipra-ui/app/less/app.less

@@ -152,8 +152,13 @@ a:hover {
   margin: 0;
 }
 
-.page-header h1 {
-  min-height: 48px;
+.page-header {
+  h1 {
+    min-height: 48px;
+  }
+  .label + h1 {
+    margin-top: 10px;
+  }
 }
 
 .nya-bs-condensed {