Added key bindings menu oprion for OSX and Linux
Added key bindings menu oprion for OSX and Linux

Ideabin/Gist,ryanmaclean/Gist,Ideabin/Gist,NetoBuenrostro/Gist,ryanmaclean/Gist,ecode/Gist,condemil/Gist,ecode/Gist,NetoBuenrostro/Gist