Moved SideBarLocation enum out of CDockWidgetSideTab into global ads namespace

src/DockWidgetTab.cpp

@@ -352,6 +352,7 @@ CDockWidgetTab::CDockWidgetTab(CDockWidget* DockWidget, QWidget *parent) :
 //============================================================================
 CDockWidgetTab::~CDockWidgetTab()
 {
+	qDebug() << "~CDockWidgetTab " << text();
     ADS_PRINT("~CDockWidgetTab()");
 	delete d;
 }