GUAC-1099: Paginate management interface. Remove styles from ui.css where possible/relevant.

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

@@ -68,7 +68,8 @@ THE SOFTWARE.
             context="groupListContext"
             connection-group="rootGroup"
             connection-template="'app/manage/templates/connectionPermission.html'"
-            connection-group-template="'app/manage/templates/connectionGroupPermission.html'"/>
+            connection-group-template="'app/manage/templates/connectionGroupPermission.html'"
+            page-size="20"/>
     </div>
 
     <!-- Form action buttons -->