Retab drawbuffer before changing it
Use VBO to draw UI, just because that's how it's supposed to be done.
Disable poor frame limiter in PCMain.cpp (SDL) for now, rely on vsync instead.
Merge pull request #25 from xsacha/master

Qt and Blackberry port
Add LoggingDeadline, sprinkle this to track what takes time
Check for EXT_discard_framebuffer
Add missing printf parameter
Add names to the magic numbers of left joystick input (Qt/Blackberry).