Use new version of the REST Endpoints
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into 569-upgrade-push-rest-endpoints
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into 569-upgrade-push-rest-endpoints
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into 569-upgrade-push-rest-endpoints

Conflicts:
	src/org/wordpress/android/ui/notifications/NotificationUtils.java
Upgrade logging calls
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into 569-upgrade-push-rest-endpoints

Conflicts:
	src/org/wordpress/android/WordPress.java
	src/org/wordpress/android/ui/notifications/NotificationUtils.java
Use AppLog instead of Log
Use AppLog instead of Log - take 2.
Update REST API call to the new server side specs
Remove settings on logout
use TextUtils.isEmpty when checking null/empty value for device_id, and removed unused parameter in unregisterPushNotificationsToken.
Make "wp_pref_notifications_uuid" a string constant, and remove it from prefs on logout.
Merge pull request #594 from wordpress-mobile/issue/569-upgrade-push-rest-endpoints

Issue/569 upgrade push rest endpoints