adding Lua 5.2.2 from tarball
5.2.2 bugfix from www.lua.org/bugs.html
Stack overflow in vararg functions with many fixed parameters called with few arguments.
reported by 云风 on 17 Apr 2013. existed since 5.1.
5.2.2 bugfix from www.lua.org/bugs.html
Garbage collector can trigger too many times in recursive loops.
reported by Roberto on 25 Apr 2013. existed since 5.2.2.
5.2.2 bugfix from www.lua.org/bugs.html
Wrong assert when reporting concatenation errors (manifests only when Lua is compiled in debug mode).
reported by Roberto on 05 May 2013.
5.2.2 bugfix from www.lua.org/bugs.html
Wrong error message in some short-cut expressions.
reported by Egor Skriptunoff on 10 May 2013. existed since 5.0.