Features toggled in the current request should be exposed as part of the rack timing middleware
Requires #232 (closed)
The Gitaly.migrate
needs to add labels to the current transaction as in https://gitlab.com/gitlab-org/gitlab-ce/blob/master/lib/gitlab/metrics/transaction.rb#L15
This is so that we can compare non-Gitaly and Gitaly routes, from end-to-end and tell what difference our features are making.
Probably also blocked on https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11553