Instead of going purely off metadata, we now track the collections we're
listening to, and allow the user to remove collections from that list.
This allows us to remove/ignore collections, without mutilating group
assocations locally.
- finds resources & displays details using metadata-store
- supports creating new collections for groups
- supports creating new collections with new unmanaged group
- supports receiving invites for new (unmanaged) collections
Shortcuts the existing retry timer by having new members send out a poke
when they acknowledge joining the group.
The existing retry logic is left in place to deal with other cases of
subscription failure.
Also fixes an incorrect relevancy check during subscription retries, now
properly preventing duplicate subscriptions.
This resolves a number of issues that were keeping communications with
foreign ships from working.
- there was no link-update mark
- there was no +on-arvo handling in link-listen-hook
- link-listen-hook was subscribing to the non-existent "link-hook"
- link-proxy-hook permission check was looking at a wrong path
Also makes link-listen-hook aware that subscriptions might get rejected
because of permissions, so that it ignores failed subscriptions instead
of being loud about it.
