[as]
- Added state to RemoteNotificationPayload and fixed type for extras.
- Added RemoteNotification.onNewIntent for Android.

[Android]
- Added onNewIntent for background notifications.
- Added state and Intent handler for setListener.

[UICompSample]
- Added how to use onNewIntent method.
Removed Log messages
Merge pull request #14 from GuitarSucks/master

Android Push Notification changes
iOS Push Notification changes
Merge pull request #15 from MatchaLatte/1.4.6-jp

iOS Push Notification changes
[android] Added Intent check incase the intent is null.
Merge pull request #16 from DeNADev/1.4.6-jp

1.4.6-jp-3