- fix syntax for luajit
- add luajit Version 2.0.1
  with hotfix: http://luajit.org/download/v2.0.1_hotfix1.patch
  included
- CMakeLists extended to support build with luajit
  configure cmake with "-DLUAJIT" to build minetest
  with luajit instead of the normal lua
Merge pull request #6 from BlindBanana/luajit

Get LuaJit from BlindBanana fork