Fixed behavior of Tool-Widgets.

Removed memory leak.

src/board/UBBoardView.cpp

@@ -989,7 +989,8 @@ UBBoardView::mouseReleaseEvent (QMouseEvent *event)
           {
              if (QGraphicsSvgItem::Type !=  movingItem->type() &&
                 UBGraphicsDelegateFrame::Type !=  movingItem->type() &&
-                UBToolWidget::Type != movingItem->type())
+                UBToolWidget::Type != movingItem->type() &&
+                QGraphicsWidget::Type != movingItem->type())
              {
                  bReleaseIsNeed = false;
                  if (movingItem->isSelected() && mMultipleSelectionIsEnabled)

src/gui/UBToolWidget.cpp

@@ -76,7 +76,7 @@ void UBToolWidget::initialize()
     if(!sUnpinPixmap)
         sUnpinPixmap = new QPixmap(":/images/unpin.svg");
     
-    QGraphicsLinearLayout *graphicsLayout = new QGraphicsLinearLayout(Qt::Vertical);
+    QGraphicsLinearLayout *graphicsLayout = new QGraphicsLinearLayout(Qt::Vertical, this);
 
     mFrameWidth = UBSettings::settings()->objectFrameWidth;
     mContentMargin = sClosePixmap->width() / 2 + mFrameWidth;