Add Facebook Audience Network Plugin
iOS: Add Test Case
Hide Facebook Banner on menuBackCallback
Add comment for test devices
Add interstitial for Facebook
Add lua binding for Facebook
Make HelloPlugin support Facebook and add TestFacebookUser test case
Add FacebookShare test case
Merge branch 'develop' of https://github.com/cocos2d-x/plugin-x into v3_facebook1

Conflicts:
	luabindings/auto/api/ProtocolAds.lua
	luabindings/auto/api/ProtocolShare.lua
	luabindings/auto/api/ProtocolSocial.lua
	luabindings/auto/api/ProtocolUser.lua
	luabindings/auto/lua_cocos2dx_pluginx_auto.cpp
	luabindings/auto/lua_cocos2dx_pluginx_auto.hpp
	luabindings/manual/lua_pluginx_basic_conversions.h
	luabindings/manual/lua_pluginx_manual_callback.cpp
Update lua-bindings
Change some absolute path into relative path in project file
update Authors add giuslape
Merge branch 'develop' into fbAds
Merge pull request #70 from darkdukey/fbAds

iOS: Facebook Ads plugin
Bug #5911  fixed some unchanged error_message
Update android setting for Facebook test cases
fix login crashing when session state is closed
Merge pull request #72 from joshuastray/fb

fix login crashing when session state is closed
Merge pull request #71 from wuzhiming/plugin_fb_5th

Bug #5911  fixed some unchanged error_message
Merge branch 'develop' of https://github.com/cocos2d-x/plugin-x into v3_facebook1

Conflicts:
	plugin-x_ios.xcworkspace/contents.xcworkspacedata
	samples/HelloPlugins/proj.ios/HelloPlugins.xcodeproj/project.pbxproj