fix(notifications): Fix notifications not firing due to currentTime being removed
fix(PostList):  Make lastupdated be stored in localstorage as a number

Exposes moment on the datetimeservice as `moment` for use as T.moment
feat(PostList): fix console tick spam
feat(PostNotifications): Move post notifications into their own service that runs separately from the controller

Fixes problem with notifications not working if on the wrong tab
Fixes posts not loading if matches tab was not tabbed into