feature #5592 add Facebook to pluginX   add sample to test-case
1:feature #5592 add Facebook to pluginX   add sample to test-case
2: add CCPoolTest into test-case
Merge pull request #510 from wuzhiming/plugin_fb

feature #5592 add Facebook to pluginX
Merge pull request #511 from pandamicro/master

Feature #4977: Improve JS test case for AssetsManager
Fixed #5617: Add new ease functions in JSB
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js