Merge pull request #1157 from dingpinglv/Iss2844_RenameVersion

Closed #2844: Rename version 2.1.6 of Cocos2d-html5 to 2.2
Issue #2901: fixed a bug of LabelTTF that it has wrong position when it was setting the style to stroke
temp
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop
Fixes bug #1205 CocoStudio animations with particles doesn't work
Fixed #2981: fixed a EGLView's bug that its touch event doesn't work when its _resolutionPolicy sets
to EXACT_FIT
Merge pull request #1207 from dingpinglv/Iss2981_RefactorEGLView

Fixed #2981: fixed a EGLView's bug that its touch event doesn't work when its _resolutionPolicy sets  to EXACT_FIT
Fixed bug #1205 Particles doesn't work when set search path.
Fixed #1205 Simplify cc.FileUtils.getInstance()
Merge pull request #1208 from xingsenma/particles_seachpath

Fixed bug #1205 Particles doesn't work when set search path.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop
Closed #3061:
Fix a bug of LabelTTF that doesn't work on baidu browser.
Merge pull request #1209 from SmallAiTT/iss3061_bug4baidu

Closed #3061:
Fixed #2901: Fix bugs of LabelTTF that it has wrong contentsize and position when it was setting the style to stroke or shadow
add git ignore list
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2901_FixLabelTTFBug

Conflicts:
	.gitignore
Fixed #2901: modify default value of shadow color string
Fixed #2901: Fix bugs of LabelTTF that it has wrong contentsize and position when it was setting the style to stroke or shadow
Merge pull request #1196 from dingpinglv/Iss2901_FixLabelTTFBug

Issue #2901: fixed a bug of LabelTTF that it has wrong position when it was setting the style to stroke
issue #2828 improve cc.UIWidget