refactoring OpenGL-related classes
uncomment some codes which were commented out to debug
* Fix: no image but garbage in snapshots(#43)
* Fix: playlist always removes and moves (up/down) the first file #44
fix for compilation in OS X
* Fix: partially broken graphics in skins
make video renderer item opaque
fallback to fbo when color adjustment is applied
reduce useless upload to GRAM
update mpv and some preparation for libmpv
update mpv
more libmpv things
update mpv
more libmpv things and more refactorings...
udpate mpv
use libmpv to dvdnav
less mpv internal APIs
make better log
replace MPContext with mpv_handle
update mpv
fix for high CPU usage when paused