make deb support
add command line help. build translations into binary.
version 1.1.11

Changelog:
- OpenGL support. Only rendering now.
- OSD support.
- New shortcuts: Ctrl+O=>open, O=>switch OSD, Q/ESC=>quit
- Command line option: -vo gl/d2d/gdi/qt, -h|--help
- Fix wrong aspect ratio when resizing
- Better qmake project
- Building debian package support: make deb
- Bug fix
Qt5 compile error fix: WID=>HWND
check whether we need glext.h
fix desktop file link
force recheck if FFmpeg not detected

TODO: should we only recheck the part not pass the test?
fix qmake warning for back slash.

a back slash is '\\' for qmake
Merge branch 'master' into x11

Conflicts:
	QtAV.pro
xv: black background