Issue #5335: update AUTHORS.txt for v3.0 beta
issue #5335: Updated changed log of cocos2d-html5 v3.0 beta.
Merge pull request #1877 from linshun/develop

issue #5335: Updated changed log of cocos2d-html5 v3.0 beta.
Issue #5335: modify jsDoc tag @constructor
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss5335_v30beta
Merge pull request #1878 from dingpinglv/Iss5335_v30beta

Issue #5335: update AUTHORS.txt for v3.0 beta and modify jsDoc tag @constructor
Issue #5364: Change setText to setString
Merge pull request #1879 from VisualSJ/develop-5-26

Issue #5364: Change setText to setString
Add engine version
Merge pull request #1880 from VisualSJ/develop-5-26

Add engine version
Issue #5410: Creating new actions
Merge pull request #1882 from VisualSJ/develop-action

Issue #5410: Creating new actions
Merge branch 'develop' of https://github.com/f15gdsy/cocos2d-html5 into develop-action
Closed #5375: fixed a bug of cc._audioLoader that it doesn't work when a audio file loads fail.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss5375_AudioLoader
Merge pull request #1883 from dingpinglv/Iss5375_AudioLoader

Closed #5375: fixed a bug of cc._audioLoader that it doesn't work when a audio file loads fail.
Closed #5412: Fixed keyboard events loss
Merge pull request #1884 from VisualSJ/develop-events

Closed #5412: Fixed keyboard events loss
Closed #5413: Enhanced cc.log function
Merge pull request #1885 from VisualSJ/develop-events

Closed #5413: Enhanced cc.log function