move opengl to  with qwindow
Merge pull request #37 from AncientLysine/master

add rc_icon for windows
try native paint
native opengl painting
new popup menus
fix poping problems
merge master
fix empty background
fix acfun loding
fix memory leak by network reply
cancel double buffer
fix menu rendering
small fixes
fix menus
change post to dialog
fix bottom slider
Merge pull request #40 from AncientLysine/opengl

Opengl