[OR-667] - Avatars in comments are not displayed when a new comment is published
OR-673 add userNotificationAPI service with setRead and setAcknowledged
OR-673 add a new function setAsRead to the userNotificationController
OR-673 Add a new endpoint /api/user/notifications/unread which returns { unread_count: xxx }
OR-673 add a new unreadCountService which returns a UnreadCount object with methods like decrease or refresh
OR-673 do not update unread count several times if it is called several times
OR-673 fix setAcknowledged call and add tests against userNotificationAPI
OR-673 add tests against unreadCountFactory
OR-673 clean code and styling
OR-673 On new user notification received by the websocket, launch the unread timer to refresh the count
OR-673 replace unreadCountFactory by a generic CounterFactory
OR-673 move $scope.unreadCount.refresh into finally
OR-673 rename notificationTemplateDisplayer into notification-template-displayer
OR-673 Get the initial unread count
by adding a new init method to Counter which use the refresh fn without timer'
OR-673 remove Mark as read button for now.
OR-673 fix styling
Merge pull request #464 in OR/rse from ~PKEWISCH/rse:OR-667 to master

* commit '9dfbd19b789754773a22d017a7df282e6e35c8ed':
  [OR-667] - Avatars in comments are not displayed when a new comment is published
Merge pull request #462 in OR/rse from ~SLEMAISTRE/rse:OR-673 to master

* commit '421bec27b37304501812e3ed7568bebe38c5dc2c':
  OR-673 fix styling
  OR-673 remove Mark as read button for now.
  OR-673 Get the initial unread count by adding a new init method to Counter which use the refresh fn without timer'
  OR-673 rename notificationTemplateDisplayer into notification-template-displayer
  OR-673 move $scope.unreadCount.refresh into finally
  OR-673 replace unreadCountFactory by a generic CounterFactory
  OR-673 On new user notification received by the websocket, launch the unread timer to refresh the count
  OR-673 clean code and styling
  OR-673 add tests against unreadCountFactory
  OR-673 fix setAcknowledged call and add tests against userNotificationAPI
  OR-673 do not update unread count several times if it is called several times
  OR-673 add a new unreadCountService which returns a UnreadCount object with methods like decrease or refresh
  OR-673 Add a new endpoint /api/user/notifications/unread which returns { unread_count: xxx }
  OR-673 add a new function setAsRead to the userNotificationController
  OR-673 add userNotificationAPI service with setRead and setAcknowledged