Merge pull request #1138 from dingpinglv/Iss2803_V2.1.6Release

Issue #2803: update submodule reference
Merge pull request #1 from cocos2d/develop

Merge from trunk
Update CCTextureCache.js

1、Fix error that cc.TextureCache.dumpCachedTextureInfo() will crash when there are cc.LabelBMFont has been created
2、Fix bug when calculate HTMLCanvasElement 's memory
Update CCTextureCache.js

fix code format
Merge pull request #1140 from WanderWang/develop

Fix  cc.TextureCache.dumpCachedTextureInfo 's bug
Issue #2803: fixed some bugs for actions that set their object property through reference when initiating actions.
Issue #2803: updates AUTHORS.txt
Issue #2803: updates build.xml of Jsdoc