- Major update to the viewer. A little bit buggy now, but I'll fix that

- Major update to the viewer. A little bit buggy now, but I'll fix that
- 2/3 of the viewer code are no wrapped in helper classes
- ByteSwap.h header added
- Bugfix in the 3DS loader: Texture blend mode was read incorrectly
- Bugfix in the X-Loader. Assets with specular_exp == 0 use gouraud lighting now
- Added new helper functions to MaterialHelper
- Added aiMaterialGetTexture() function to allow easy access to all properties of a texture

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@16 67173fc5-114c-0410-ac8e-9d2fd5bffc1f