trying to catch key events in the app
- Added an empty QListView in the layout, with two splitters
- Also created a class for the main window
Automatically added pre-loaded source images to list view
Allows selection of the source: changes the source in the canvases
Merge remote-tracking branch 'vliaskov/try-to-catch-key'

Conflicts:
	prototypes/wx-01-simple/main.cpp
Merge branch 'master' of github.com:libremapping/libremapping

Conflicts:
	Common.cpp
	Common.h
	DestinationGLCanvas.cpp
	SourceGLCanvas.cpp
	main.cpp