Hide li.root element on folders list, temp. hide quota widget

skins/elastic/styles/widgets/lists.less

@@ -351,6 +351,11 @@ ul.treelist li {
                 background: @color-list-recent-badge-background;
                 color: @color-list-recent-badge;
             }
+
+            &.root {
+                display: none;
+                /* FIXME: This element is confusing, I propose to not use it */
+            }
         }
 
         a:before {

skins/elastic/templates/folders.html

@@ -18,12 +18,14 @@
 		<roundcube:object name="foldersubscription" form="subscriptionform" id="subscription-table"
 			class="treelist listing folderlist iconized" role="listbox" data-list="subscription_list" />
 	</div>
+<!--
 	<div class="footer">
 		<roundcube:if condition="env:quota" />
 			<span class="voice"><roundcube:label name="quota"></span>
 			<roundcube:object name="quotaDisplay" id="quotadisplay" class="countdisplay" display="text" />
 		<roundcube:endif />
 	</div>
+-->
 </div>
 
 <!-- folder info frame -->