Added Lua interpreter ver 5.2.1 to source tree.
Made adjustments to moaicore code to build and run correctly with Lua 5.2. Some features are currently disabled:

* MOAILuaRuntime.dump and MOAILuaRuntime.dumpStack are disabled
* lua extensions (moaiext-luaext) is was not ported and is missing when Lua 5.2 is used.

Added lua 5.2 support to VS 2010 build system.
Merge branch 'master' of github.com:selitvin/moai-dev
Conditioning reference to moaiext-luaext project for all vcxproj files.
Printing lua version used right after GlutHost starts.
Fixing a typo in MoaiKeyboard.java that was preventing libmoai build on Android
Merge branch 'master' of github.com:selitvin/moai-dev
Added Lua 5.2 support for Android build. To build for Lua 5.2, run libmoai/build.sh or makehost.sh with --lua 5.2 switch
Merge branch 'master' of https://github.com/moai/moai-dev
Merge pull request #698 from selitvin/master

Adding Lua 5.2 support to Windows and Android build systems