Merge pull request #2846 from natural-law/master

Add twitter plugin for iOS
[win32] Updating TestLua.
Merge pull request #2848 from dumganhar/master

[win32] Updating TestLua.
[jsoncpp] Value::null -> Value::jsonNull to avoid conflict when compiling with clang++ or high version of gcc since null is defined as a key word.
[Tizen] Updating project configurations.
Merge pull request #2849 from dumganhar/master

[Tizen] Updating project configurations.
[Win32] Updating project dependence.
issue #2271: Fixing some memory leaks.
[VS2012] Warning fixes.
CCScriptEngineManager::sharedManager()->purgeSharedManager(); --> CCScriptEngineManager::purgeSharedManager();
Merge pull request #2851 from dumganhar/master

issue #2271: Fixing some memory leaks. [VS2012] Updating project dependence and warning fixes.
Updating JS-Test.
Merge pull request #2852 from dumganhar/master

Updating JS-Test.
[Win32] Deleting vs template, please use 'tools/project-creator' to create multi-platform project instead.
Merge pull request #2853 from dumganhar/master

[Win32] Deleting vs template, please use 'tools/project-creator' to create multi-platform project instead.
[Android] Updating multi-platform-lua/proj.android/.project
Merge pull request #2854 from dumganhar/master

[Android] Updating multi-platform-lua/proj.android/.project
[Extension] RENDER_H --> CC_ARMATURE_GLES_RENDER_H
[Template] Updating iOS template project of multi-platform-cpp.
[Template] Updating iOS template project of multi-platform-lua. Using AudioEngine module.