Linux: added project part for QtCreator.

Allows easily setup cocos2d on Linux in QtCreator IDE.
Enabled c++0x flag, use OpenAL audio backend by default.
issue #2305:remove unneeded comment
Rename the class ProtocolSocial to ProtocolShare.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop
issue #2325: [iOS] Using Workspace to manage all projects. TBD, also apply to Mac port.
issue #2325: [iOS] Adding missing workspace file.
Update the JS binding for plugin.
issue #2325: Adding armv7s architecture.
Merge pull request #2979 from minggo/iss2305-replace-pthread

use c++11 thread instead of pthread in AssetsManager
Merge pull request #2980 from natural-law/develop

Rename the class ProtocolSocial to ProtocolShare.
issue #2325: Updating project configuration, tested on iPad 3.
Merge pull request #2981 from dumganhar/iss2325-ios-workspace

issue #2325: [iOS] Using Workspace to manage all projects. TBD, also apply to Mac port.
Up the minSdkVersion to 9
Update target to android-10 for NDK code
Add -landroid to LOCAL_LDLIBS and LOCAL_EXPORT_LDLIBS
#define LOGD
Native Asset Manager
isFileExist()
getFileData()

 * The async case is NYI
 * include stdlib for abort() when forAsync is true