Track inventory group expand/collapse in local storage. Support multiple inventory syncs running simultaneously. Moved socket connection for job_events to app root. Added on/off socket button so user can tell state of connection and reset/reconnect when needed. Applied AC-1211 fix.

awx/ui/static/less/ansible-ui.less

@@ -1203,6 +1203,18 @@ input[type="checkbox"].checkbox-no-label {
   }
 /* end */
 
+/* Socket icon */
+  .socket-ok {
+      color: @green;
+  }
+  .socket-error {
+      color: @red;
+  }
+  .socket-connecting {
+      color: @warning
+  }
+/* end */
+
   .field-success {
     color: #5bb75b;
   }