Re-add ability to open a new tab by double-clicking the tab bar.

I don't know why this was removed; please tell me if I'm interfering.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=799364

src/ViewContainer.cpp

@@ -605,6 +605,7 @@ TabbedViewContainerV2::TabbedViewContainerV2(NavigationPosition position , QObje
    
     connect( _tabBar , SIGNAL(currentChanged(int)) , this , SLOT(currentTabChanged(int)) );
     connect( _tabBar , SIGNAL(tabDoubleClicked(int)) , this , SLOT(tabDoubleClicked(int)) );
+    connect( _tabBar , SIGNAL(newTabRequest()) , this , SIGNAL(newViewRequest()) );
     connect( _tabBar , SIGNAL(wheelDelta(int)) , this , SLOT(wheelScrolled(int)) );
 	connect( _tabBar , SIGNAL(mouseMiddleClick(int)) , this , SLOT(closeTab(int)) );
 	connect( _tabBar , SIGNAL(initiateDrag(int)) , this , SLOT(startTabDrag(int)) );

src/ViewContainer.h

@@ -240,6 +240,9 @@ signals:
     /** Emitted when the user requests to close a view */
     void closeRequest(QWidget* activeView);
 
+    /** Emitted when the user requests to open a new view */
+    void newViewRequest();
+
     /** 
 	 * Emitted when the user requests to move a view from another container
 	 * into this container.  If 'success' is set to true by a connected slot

src/ViewManager.cpp

@@ -576,6 +576,7 @@ ViewContainer* ViewManager::createContainer(const Profile::Ptr info)
            SLOT(map()) ); 
     _containerSignalMapper->setMapping(container,container);
 
+    connect( container, SIGNAL(newViewRequest()), this, SIGNAL(newViewRequest()) );
     connect( container, SIGNAL(moveViewRequest(int,int,bool&)), 
 	this , SLOT(containerMoveViewRequest(int,int,bool&)) );
     connect( container , SIGNAL(viewRemoved(QWidget*)) , this , SLOT(viewCloseRequest(QWidget*)) );