Included updated Android plugin.
Ignored unity temp directories.
Merge branch 'develop' of https://github.com/manage/unity-sdk-sample-app into develop

Conflicts:
	UnitySampleApp/Assets/Plugins/Android/APS-Android-v3.1.1-prod-20140312.jar
	UnitySampleApp/Assets/Plugins/Android/APS-Android-v3.1.1-prod-20140312.jar.meta
	UnitySampleApp/Assets/Plugins/Android/appsponsorsdk.jar.meta
	UnitySampleApp/Assets/Plugins/Android/manageandroidplugin.jar.meta
	UnitySampleApp/Assets/Plugins/ManagePlugin/ManagePluginAndroid.cs
	UnitySampleApp/Assets/Plugins/iOS/ManagePlugin.mm
	UnitySampleApp/Assets/Scenes/DemoScene-MRAID.unity