Hide message reply button on twitter messages

We can't reply on twitter, so don't show a broken UI.
Also hide pagination when less that 1 page of results

Refs ushahidi/platform #1480

Author: rjmackay

app/main/posts/detail/post-messages.html

@@ -22,15 +22,15 @@ <h2 class="listing-item-title">
     </div>
   </div>
 
-  <div class="listing-item">
+  <div class="listing-item" ng-show="totalItems > itemsPerPage">
     <div class="listing-item-primary">
 
       <uib-pagination ng-model="currentPage" items-per-page="itemsPerPage" total-items="totalItems" ng-change="pageChanged()" max-size="5" rotate="false"></pagination>
 
     </div>
   </div>
 
-  <div class="listing-item">
+  <div class="listing-item" ng-show="contact.type !== 'twitter'">
     <div class="listing-item-primary">
       <h2 class="listing-item-title">
         <a href="" class="button button-flat" ng-click="reply()">