fixed group ungroup button 2

resources/forms/mainWindow.ui

@@ -1632,6 +1632,9 @@
    </property>
   </action>
   <action name="actionGroupItems">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
    <property name="enabled">
     <bool>false</bool>
    </property>
@@ -1641,7 +1644,7 @@
      <normalon>:/images/toolbar/ungroup.png</normalon>:/images/toolbar/group.png</iconset>
    </property>
    <property name="text">
-    <string>Group Items</string>
+    <string>Group</string>
    </property>
    <property name="toolTip">
     <string>Group items</string>

src/board/UBBoardController.cpp

@@ -880,13 +880,11 @@ void UBBoardController::groupButtonClicked()
     }
 
     if (groupAction->text() == UBSettings::settings()->actionGroupText) { //The only way to get information from item, considering using smth else
-    	groupAction->setIcon(QIcon(":images/toolbar/ungroup.png"));
     	UBGraphicsGroupContainerItem *groupItem = activeScene()->createGroup(selItems);
         groupItem->setSelected(true);
         UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
 
     } else if (groupAction->text() == UBSettings::settings()->actionUngroupText) {
-    	groupAction->setIcon(QIcon(":images/toolbar/group.png"));
         //Considering one selected item and it's a group
         if (selItems.count() > 1) {
             qDebug() << "can't make sense of ungrouping more then one item. Grouping action should be performed for that purpose";