Extend support for subscriptions to node types, taxonomy terms... and delegate administration.

The notifications module suite is pretty sweet. The permission options copy-pasted below, speak for themselves. I saw some code to migrate settings from the notifications module (email, no email, digest) to og_mailinglist and I'm wondering whether the og_mailing roadmap would go towards replicating all notifications module features, or whether it would make sense to look at making the two integrate with each other?

notifications module
administer notifications
maintain own subscriptions
manage all subscriptions
manage own subscriptions

notifications_content module
skip notifications
subscribe to author
subscribe to content
subscribe to content type

notifications_tags module
subscribe to taxonomy terms

notifications_team module
subscribe other users

Here's another thought about permissions and management of subscriptions. In some cases, it would make sense to allow a group manager (with a manage "other's subscription permission" for instance) to force subscribe and define subscription type for the group members. This would allow to make sure the platform would send email in real time for a specific group/mailinglist (like the organisations' "All Staff" group and preventing members to change this and to say, "I didn't receive the memo"), while allowing users to modify their settings themselves for opt-in groups (like the weekly digest for the organisations's "Jokes" group).

Not sure what Phase2 has in mind with email notifications since they became leads on Open Atrium, but with this kind of feature you'd be close to a googlegroupilla... and you would satisfy a few existing users (https://community.openatrium.com/issues/node/1867 https://community.openatrium.com/issues/node/1857 https://community.openatrium.com/issues/search/posts?keys=mailcomment&ty...) that are already looking at og_mailinglist as a solution for their group to email problems.

Cheers,

Jun.