Merge pull request #57 from aapo/master

maemo: hide cursor. might be useful with other touch screen devices
define GLEW_STATIC to avoid warning
using GL_EXT_framebuffer_objects instead of GL_ARB_framubuffer_objects.
Switch out etcpack with the ZLIB licensed rg_etc1 library
Add warn log when falling back to xor texture
mix FBO_ARB and FBO_EXT code.
NativeMix now returns int
Buildfix
Cmakelist update
Buildfix for Mac/Linux/etc.

Although, Qt seems more involved...
add condition define for USING_GLES2
Merge pull request #58 from tpunix/fbo_ext

Fbo ext
Allow loading textures from a PNG in RAM. Add startsWith string function.
Add TouchCrossPad widget which actually can do diagonals reasonably.
Some drawing refactoring
Some drawing refactoring
Make generating mips optional for loaded-from-memory PNGs.
TouchCrossPad - don't break other input
Android: Don't preserve state of buttons not set through jni between frames.
Buttons don't have to clear state when not pressed after sticky fix.