code: public void removeAll () {
  		for (Tab tab : tabs) {
  			tab.setPane(null);
  			tab.onHide();
  			tab.dispose();
  		}
  
  		tabs.clear();
  		tabsButtonMap.clear();
  		tabsPane.clear();
  
  		notifyListenersRemovedAll();
  	}
docs: Removes all tabs, ignores if tab is dirty