LPS-51052 prefix with KEY_ so that you can prefix with VALUE_ later to different keys from values
LPS-51052 Move sendNotification related methods to PushNotificationsEntry service

Conflicts:
	portlets/push-notifications-portlet/docroot/WEB-INF/src/com/liferay/pushnotifications/service/impl/PushNotificationsDeviceLocalServiceImpl.java
	portlets/push-notifications-portlet/docroot/WEB-INF/src/com/liferay/pushnotifications/service/impl/PushNotificationsDeviceServiceImpl.java
	portlets/push-notifications-portlet/docroot/WEB-INF/src/com/liferay/pushnotifications/service/impl/PushNotificationsEntryLocalServiceImpl.java
	portlets/push-notifications-portlet/docroot/WEB-INF/src/com/liferay/pushnotifications/service/impl/PushNotificationsEntryServiceImpl.java
LPS-51052 Persist notification

Conflicts:
	portlets/push-notifications-portlet/docroot/WEB-INF/service/com/liferay/pushnotifications/util/PushNotificationsConstants.java
	portlets/push-notifications-portlet/docroot/WEB-INF/src/com/liferay/pushnotifications/service/impl/PushNotificationsEntryLocalServiceImpl.java
LPS-51052 SF
LPS-51052 SF
LPS-51052 Regen