[iOS] Adding lua projects.
close #2371: Adding Lua projects for Mac.
issue #2371: std::vector<std::string>::iterator --> auto in CCFileUtils.cpp.
issue #2371: [Mac] glClearDepth --> glClearDepthf, glDepthRange --> glDepthRangef, glReleaseShaderCompiler --> NULL .
issue #2371: Set design resolution for TestLua.
issue #2371: Updating LuaCocos2d.cpp.
issue #2371: Updating luajit building script for Mac 64 bit. We need to build a 32bit, 64bit fat library.
issue #2371: Updating CCTexture2D.pkg.
issue #2371: Delete unused files
issue #2371: Adding HelloLua and TestLua projects for MAC.
issue #2371: Adding scripting/lua/luajit/mac/libluajit.a
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2371-add-lua-ios-mac

Conflicts:
	scripting/lua/cocos2dx_support/LuaCocos2d.cpp
close #2371: Updating LuaCocos2d.cpp.
issue #2371: Reverting .gitignore file. We need to add .xcworkspacedata to ignore list.
issue #2371: Removed unused projects.
issue #2371: Removing unused file.
issue #2371: [Lua] Only 64bit target needs the linking flag '-pagezero_size 1000 -image_base '
Merge pull request #3074 from dumganhar/iss2371-add-lua-ios-mac

ios and mac projects need to be unified in one simple xcode project, adding lua projects for Mac and iOS.