Collect and cache metadata, run hooks on changes.

Gerrit User 12404 795389284f Create change ... Uploaded patch set 1. Patch-set: 1 Change-id: I234a3d60333ee89a7c283b425e524d4624191577 Subject: Add tls proxy support for Zaqar Branch: refs/heads/master Commit: 36afc82ac3 Groups: 36afc82ac3		2020-05-08 07:45:34 +00:00