Merge pull request #692 from joshuastray/master

issue #5804: fix the bug of empty folder not being copied in plugin-x
Closed #5781: update the reference of cocos2d-html5
Merge pull request #693 from dingpinglv/Iss5781_V3rc2

Closed #5781: update the reference of cocos2d-html5
Issue #5781: Update read me
Update -x to fix downloader issue
Issue #5781: Add cc.formatStr
Update the reference of submodule cocos2d-console.
Merge pull request #694 from joshuastray/master

issue #5797: fix the bug of assigning number to LabelTTF
Merge pull request #695 from pandamicro/master

Update -x to fix downloader issue
Merge pull request #696 from natural-law/master

Update the reference of submodule cocos2d-console.
Update the reference of submodule cocos2d-console.
Merge pull request #698 from natural-law/master

Update the reference of submodule cocos2d-console.
Issue #5695: Update Facebook plugin
Merge pull request #699 from VisualSJ/master-rc2

Issue #5695: Update Facebook plugin
Merge pull request #701 from joshuastray/fb_refactor

issue #5592:refactor facebook plugin and fix bugs of dialog callback
issue #5695: fix facebook testcase
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js into fb_refactor
issue #5695: add publish_actions permission