6cc1190d8fecbd617e10640e7bae780de76f0855

Whenever a ref is updated via either a direct push to a branch or a Gerrit change submission, Gerrit will now send a new "ref-updated" event to the event stream. This can be used by external agents for things like automatic submodule ref updating, replication, build bot hooks, etc. Change-Id: Ice9d65db8fd662d53df53ff6b61d811815c9f2f6
Description
RETIRED, Gerrit as used by OpenStack