.gitignore globs for Mac.
- Added Xcode and OSX libraries.
Add missing bitmaps and fonts.
- The .gitignore has multiple "bin" exclusions which I think led to these resources being accidentally ignored.
Fixed OSX premake build.
- premake will now generate an Xcode 4.5 project that will build, link and run.
- To get this to work I link against static Allegro libraries. I copied these to gwen/lib/macosx.
- Other dependencies (freetype, bzip, z) are from Macports. Also copied to macosx.
- Made line lengths shorter: easier to read on laptop.
Fixed Allegro sample.
- Wrong main declaration.
- TextureBase constructor.
Fixed various warnings and errors.
- Function with no return value.
- Unused variables.
- Dangerous if !!
Merge pull request #20 from billyquith/master

OSX and Allegro fixes for GWEN