fixed cc.pGetAngle not using absolute value
On activity result listener added
it is strongly need fro most extensions like Game Center and In app billing
merge error fix
isActivityVisible method
Fix possible memory leak
issue #4783, add outline shader files
closed #4783. finish the shading effects
closed #4783. remove unused comments in shader file
closed #4783. replace deprecated function call
issue $4771: move PhysicsWorld to layer.
issue $4771: fix lua test and fix some bugs
Adds performance test for callbacks: 1) std::function,
2) (target->*selector)(), 3) simulate new api of Scheduler
Removes unused enum in PerformaceCallbackTest
Fix for issue http://www.cocos2d-x.org/issues/4880.
closed #4771: modify test.
Merge pull request #6288 from boyu0/bug4771_move_physicsworld_2_layer

closed #4771: Move PhysicsWorld to Layer
[AUTO]: updating luabinding automatically
Merge branch 'develop' into perf-callback

Conflicts:
	build/cocos2d_tests.xcodeproj/project.pbxproj
Merge pull request #6291 from dumganhar/perf-callback

Adds performance test for callbacks: 1) std::function,2) (target->*selector)(), 3) simulate new api of Scheduler
Merge pull request #6367 from CocosRobot/update_lua_bindings_1398398362

[AUTO]: updating luabinding automatically