issue #5695: add request permission
add request api testcase
Merge pull request #635 from joshuastray/master

issue #5695: add requestPermission testcase
Issue #5779: Incoming parameter order of listener
target, selector --> selector, target
Merge pull request #636 from VisualSJ/master

Issue #5779: Incoming parameter order of listener
Issue #5780: Add -ObjC link flag to avoid Facebook plugin link issue
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Update html5 engine