reduce useless convert
issue #2050: unsigned int to int
Merge pull request #1 from cocos2d/develop

sync with cocos2d-x
issue #2050: delete max/minGID, fix firstGID bug
issue #2050: use static_cast
closed #2050: Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into bug2050_tilemap_firstgid_bug

Conflicts:
	cocos/2d/CCTMXLayer.cpp
closed #2050: fix js glue code.
modify template
modify ui
adapt ui
modify template
ingore .git
modify create_project
add README.md
modify cocos README.md
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop

Conflicts:
	template/multi-platform-js/Classes/AppDelegate.cpp
Reverts submodules
Reverts bindings-generator reference.
modify linux tempalte
modify linux template