small fix for click on row menu submenus

src/app/partials/dashboard.html

@@ -39,14 +39,14 @@
                 </span>
                 <ul class="dropdown-menu dropdown-menu-right" role="menu" aria-labelledby="drop1">
                   <li class="dropdown-submenu">
-                    <a href="#">Add Panel</a>
+                    <a href="javascript:void();">Add Panel</a>
                     <ul class="dropdown-menu">
                       <li><a ng-click="add_panel_default('graph')">Graph</li></a>
                       <li><a ng-click="add_panel_default('text')">Text</li></a>
                     </ul>
                   </li>
                   <li class="dropdown-submenu">
-                    <a href="#">Set height</a>
+                    <a href="javascript:void();">Set height</a>
                     <ul class="dropdown-menu">
                       <li><a ng-click="set_height('100px')">100 px</li></a>
                       <li><a ng-click="set_height('150px')">150 px</li></a>
@@ -61,7 +61,7 @@
                     </ul>
                   </li>
                   <li class="dropdown-submenu">
-                    <a href="#">Move</a>
+                    <a href="javascript:void();">Move</a>
                     <ul class="dropdown-menu">
                       <li><a ng-click="move_row(-1)">Up</li></a>
                       <li><a ng-click="move_row(1)">Down</li></a>