Demo release version 1.0c

New in those demo :
Faster performance, as always
Lot of precision issue and code quality issue fixed
More robust matrix code
Fix port unlock in newer OS
Use demo for alpha transparency (Fran model) and full screen room rendering (Kaliya cave)

Key :

Directional pad - rotate and move
F1 & F5 - control camera zoom (modelviewer) or height (free camera)
F2 & F4 - for model viewer only - control camera height
Mode - for model viewer only - display debug information