[2.1.5] Fixing a typo: EVNET_ --> EVENT_
[2.1.5] Re-order of recovering GL status in jni/xxx/main.cpp.
Update the configuration files of JS Binding in plugin.
Merge pull request #2 from natural-law/master

Update the configuration files of JS Binding in plugin.
Remove JS binding & samples of plugins.
Solve the error during ndk-build when ndk version is r9b & later.
Merge pull request #19 from natural-law/master

Update the plugin protocols code & samples.
Merge branch 'master' of https://github.com/cocos2d-x/plugin-x into working

Conflicts:
	plugins/GooglePlayService/proj.android/.project
	plugins/googleplay/proj.android/.project
	plugins/googleplay/proj.android/project.properties
	plugins/qh360/proj.android/build.xml
	plugins/uc/proj.android/project.properties
	protocols/platform/ios/InterfaceGoogle.h
	samples/HelloAds/proj.android/jni/hellocpp/main.cpp
	samples/HelloAnalytics/proj.android/jni/hellocpp/main.cpp
	samples/HelloIAP/proj.android/jni/hellocpp/main.cpp
	samples/HelloPlugins/Resources/BtnAlipay.png
	samples/HelloPlugins/Resources/BtnND91.png
	samples/HelloPlugins/Resources/CloseNormal.png
	samples/HelloPlugins/Resources/CloseSelected.png
	samples/HelloPlugins/proj.android/proguard-project.txt
	samples/HelloSocial/proj.android/jni/hellocpp/main.cpp