OS X Support

[milesrout]

Support for building and running on OS X.

[adam4813]

Travis can do osx and clang is now good, so maybe it can be enabled now? Or at the least maybe it can be assumed if Travis's clang build works that it will at least compile on osx?

[milesrout]

The changes needed for this basically come down to the code being written (actually rather well) for OS X but clearly not actually compiled on OS X.

So I don't have much porting to do, mostly just fixing a few syntax errors, fixing some build system problems, some OpenGL header and linking issues, the usual OS X stuff.

[adam4813]

Win, getting an OS X build out too would be very much a step forward.

-Adam