Maemo: *joy was not defined when MAEMO
Maemo: don't include <EGL/egl.h>, it will fetch XLib.h and it breaks compiling
Maemo: There are no Escape on Maemo, use SDL_BACKSPACE
Maemo: Maemo needs same PFNGLDISCARDFRAMEBUFFEREXTPROC etc than Meego
Merge pull request #115 from aapo/master

Maemo5 support.