LuaJIT & added bindings.

Removed included standard Lua implementation. Switched luabind to use LuaJIT. Included script to install LuaJIT system-wide. Added various bindings including current platform (of.TARGET.CURRENT), binding ofImages, ofVecX (unfinished), texture wrapping, pixel / gl internal formats, ofSetLogLevel, and some other things that really should have been bound already. There's still a LOT of unbound functionality that makes working with ofxLua really frustrating. I hope someday it will be fully bound.

I've tested this branch successfully on Mac OS and Raspberry Pi.

check out https://github.com/abigpotostew/kaleidoscope_lua for a lua script or https://github.com/abigpotostew/luaPi for the RPi edition.