Added error handling when user is not connected to the internet
Merge branch 'UnityUI' of https://github.com/SocialPlay/CloudGoodsSDK into UnityUI

Conflicts:
	Assets/Resources/SocialPlaySettings.asset
	Assets/SocialPlay/Textures/generic UI pieces/InputWindow.png
	Assets/SocialPlay/Textures/generic UI pieces/toolTip.png
	Assets/generic UI pieces/toolTip.png
	ProjectSettings/EditorBuildSettings.asset