Simplify AsyncStruct slightly -- make it a class, add a constructor.
Initial commit of browser accelerated async image-loading code for Emscripten.
Get async image loading building with -O2 and asm.js
Simple logging controls in testcpp index.html
Merge remote-tracking branch 'origin/master' into emscriptenate
Bump Emscripten version
Update to testcpp makefile to include all assets, rather than cherrypicking.
fixed #2301: Merge branch 'emscriptenate' of https://github.com/j4m3z0r/cocos2d-x into j4m3z0r-emscriptenate

Conflicts:
	cocos2dx/proj.emscripten/cocos2dx.mk
issue #2301: m_pTextures --> _pTextures.
issue #2301: Updating travis-scripts for emscripten.
issue #2301: _pTextures --> _textures.
Merge pull request #2924 from dumganhar/j4m3z0r-emscriptenate

fixed #2301: Asynchronous Image loading for Emscripten.
[emscripten] Merge PR https://github.com/cocos2d/cocos2d-x/pull/2919