Use native label for "Browse" button

Change-Id: I129cc8fde704ff9bddd53ce277101528ebdd871c
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
CppEditor: Add "= 0" for pure virtual functions in override popup

Change-Id: If1887424f240eba750aeb13d52a101c00904f71b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>