Core model: add "User Mailbox" assoc type
At the moment Core refers a foreign entity (org.deepamehta.signup.user_mailbox
). Thus the Core depends on a plugin. This reference must be removed.
Solution:
- the Core provides such an assoc type (e.g.
dmx.core.user_mailbox
). - the Sign-up plugin uses that type (instead of
org.deepamehta.signup.user_mailbox
which is obsolete then)
Wording and semantic details of the new assoc type remain to be discussed.
This is a follow-up of dmx-plugins/dmx-sign-up#25 (closed)
@mukil FYI