createARBContextAndPixelFormat didn't return true when ok
Completed GL 2.0
Don't allow null strings in Sys.alert()
Win32: Fix Pbuffer.getPbufferCaps()
Win32: Fix pbuffer context sharing
Linux: Don't free Pbuffer when it is not created
Don't set the window location twice in Display.createWindow()
Win32: Fix native crash when no suitable pixel format is found.
Win32 build: Removed redundant libraries from linker option
Removed redundant makeCurrent from Display.java
