new features

* new skin (menu backgrounds for now, still work in progress)
* support for 24/32 bits GAF (TA3D's own extension to GAF format)
* a few bug fixes on win32 build
download it here:
TA3D 0.4.2 TEST 8
PS: it has been released early to allow fast debugging of 24/32 bits GAF support because those GAF aren't compatible with TA and if changes have to be made then compatibility might be lost with current implementation of those GAF.