Enable blank container for group settings page

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/base/gl_bootstrap.scss

@@ -156,12 +156,16 @@
  * Add some extra stuff to panels
  *
  */
+
+.container-blank .panel .panel-heading {
+  font-size: 17px;
+  line-height: 38px;
+}
+
 .panel {
   box-shadow: none;
-  .panel-heading {
-    font-size: 17px;
-    line-height: 38px;
 
+  .panel-heading {
     .panel-head-actions {
       position: relative;
       top: -5px;

app/views/groups/edit.html.haml

+- @blank_container = true
 .panel.panel-default
   .panel-heading
     %strong= @group.name