Merge pull request #276 from pandamicro/master

Update runtime prebuilt
fixed #4818: updated readme.md
fixed #4818: update readme.md and release note
Merge pull request #277 from linshun/iss4818_updateAuthors

fixed #4818: updated readme.md and releasenote
Add feature to force update environment variable in setup.py
Fixed #4707 :cc.view.setDesignResolutionSize should change cc.winSize in JSB
fixed #4707:cc.view.setDesignResolutionSize should change cc.winSize in JSB
Merge pull request #278 from natural-law/master

Add feature to force update environment variable in setup.py
Merge pull request #279 from joshuastray/master

Fixed #4707 :cc.view.setDesignResolutionSize should change cc.winSize
Find the ant command path from system first when ANT_ROOT is not set.
Update the reference of submodule cocos2d-console.
Find the ant command path from system first when ANT_ROOT is not set on Linux.
Merge pull request #280 from natural-law/master

Find the ant command path from system first when ANT_ROOT is not set.
fixed #4770: Compare already binded point util functions and remove useless JS Wrappers
Merge pull request #281 from joshuastray/master

fixed #4770: Compare already binded point util functions and remove usel...
Bug #4580: Fix API inconsistence in Constants between h5 and jsb
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
rename constants of ParticleSystem
Merge pull request #282 from joshuastray/master

Bug #4580: Fix API inconsistence in Constants between h5 and jsb
fixed Bug #4852: Add allLayers function in TMXTiledMap in JSB
fix bug