Fixed duplicate dependency.
Renamed DispatchServiceMockImpl and AccountsServiceMockImpl as TestImpl
Added NMPL element 'activate' which changes the notification state from
pending to active. This allows for subscription-only notifications.
Implemented getPersonalNotificationPlan() and turned off DB debug,
again.
Added activate() method in support of the new activate element.
Added toString()
Implemented equals(), hashCode(), and toString().
Fixed a bug in getMessageLayout().
Added support for processing notification template and channel
subscriptions. Also, improved the process for initiating notifications.