added ClippingRegionNode
standardized codes
no message
Feature #4977: Fix an issue about checkUpdate function
modified project files and make files
restored cocos/CMakeList.txt
ClippingRegionNode --> ClippingRectangleNode
Fixing bug
fixed BillBoard
Added New Test case
Merge pull request #141 from songchengjiang/fixbillboard

Fixed billboard
Update project setting for lua-tests、lua-empty-test and lua-game-controller-test on the different platform and related test codes
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_adjust
fix CMakeLists for Mac Os
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_adjust

Conflicts:
	build/cocos2d_tests.xcodeproj/project.pbxproj
removed old WP8 project files
added missing CC_USE_PHYSICS
updated for Windows 8.1
enabled console for WinRT
added check for WP8_SHADER_COMPILER
added check for WinRT and WP8