UFO: Alien Invasion for OpenPandora (featuring ARM support and GLES renderer)

This fork is aimed at OpenPandra, so get:

• ARM compatibilty (using -DARM)
• Some NEON optimized code (using -DNEON)
• GLES renderer (using -DHAVE_GLES)
• OpenPandora support of course (using -DPANDORA), for screen resolution and font size mainly.

For the Pandora version, I used some Hardwired modif in the Makefile (look in build/ and build/modules)

For more info on the OpenPandora go here: http://boards.openpandora.org/ Specific thread for UFO:AI on the OpenPandora here: http://boards.openpandora.org/index.php/topic/14050-ufoalien-invasion/