[Cocos2d-JS] Docs for 3.1 beta release
Merge branch 'master' of https://github.com/cocos2d/cocos-docs
[Cocos2d-JS] Improve Facebook document
[Cocos2d-JS] Improve Cocos2d-JS 3.1 beta release documents
Update en.md

Update integration guide for Android.
[Cocos2d-JS] Improve Cocos2d-JS 3.1 beta release documents
Update en.md

Update iOS guide
Update en.md
Update en.md

Update JS SDK guide
Merge pull request #539 from tczbzb/patch-9

Update en.md
Merge pull request #540 from tczbzb/patch-10

Update en.md
Merge pull request #541 from tczbzb/patch-11

Update en.md
Merge pull request #538 from joshuastray/master

add Chinese document for compilation in eclipse
Comments on design doc

I've put in some comments, in *italics* and tagged [colin], mostly around harmonizing the design of this SDK with the design of our two clearest existing SDKs - JavaScript and Unity.
Updated recommendations

I just found the mail that Bo circulated explaining the dialog situation, and I have more specific recommendations based on that.
clarifying change

Split two suggestions into their own paragraphs.
Quick三消第二篇
Merge pull request #543 from rainswan/master

Quick三消第二篇
Merge pull request #542 from ccreitz/patch-1

Comments on design doc
Revert "Comments on design doc"