Updates CODING STYLE

Adds Xcode 5.0, gcc 4.8 and VS 2012 as the supported compilers
Merge pull request #4210 from ricardoquesada/coding

Updates CODING STYLE
More fixes to CODING STYLE

Adds cocos2d-x logo, and other  syntax fixes
Merge pull request #4211 from ricardoquesada/coding_ii

More fixes to CODING STYLE
removes cocos2d-x from title since the image is already there
Merge pull request #4212 from ricardoquesada/coding_iii

removes cocos2d-x from title since the image is already there
correct size for  Listener ID
Merge pull request #4213 from ricardoquesada/listener_id_type

correct type for  Listener ID
issue #2770: fix some warning
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss2770_fix_warnings