GUAC-1138: Use date format from translation string.

guacamole/src/main/webapp/app/manage/templates/manageConnection.html

@@ -97,7 +97,7 @@ THE SOFTWARE.
             <tbody>
                 <tr ng-repeat="wrapper in wrapperPage">
                     <td class="username">{{wrapper.entry.username}}</td>
-                    <td class="start">{{wrapper.entry.startDate | date:'short'}}</td>
+                    <td class="start">{{wrapper.entry.startDate | date:historyDateFormat}}</td>
                     <td class="duration">{{wrapper.durationText | translate:"{VALUE: wrapper.duration.value, UNIT: wrapper.duration.unit}"}}</td>
                 </tr>
             </tbody>