LPS-32449 Send subscription when selecting assets manually
LPS-32449 Everytime a content is created or selected from Asset Publisher the logic for sending subscriptions should be executed (even if the user who created or selected the content is not subscribed to the Asset Publisher)
LPS-32449 If the asset publisher is configured to not send notifications we shouldn't send them
LPS-32449 The title of the portlet should be handled transparently by the SubscriptionSender
LPS-32449 Source formatting
LPS-32409 When checking permissions at portlet level for instanceable portlets we need to pass the plid for permission checking
LPS-32409 Minimize the chance for errors by moving common logic to one method