- Offloads uploading to GitLab Workhorse
- Use /authorize request for fast uploading
- Added backup recipes for artifacts
- Support download acceleration using X-Sendfile

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

This column is queried when creating a new project, without an index
this query would lead to a sequence scan.

Fixes performance regression introduced by MR1649

Closes https://github.com/gitlabhq/gitlabhq/issues/9753

[ci skip]

This adds indexes for the following columns:

* notes.line_code
* ci_projects.gitlab_id
* ci_projects.shared_runners_enabled
* ci_builds.type
* ci_builds.status

Fixes #3086

Credits to Douwe Maan

Performance is improved in two steps:

1. On PostgreSQL an expression index is used for checking lower(email)
   and lower(username).
2. The check to determine if we're searching for a username or Email is
   moved to Ruby. Thanks to @haynes for suggesting and writing the
   initial implementation of this.

Moving the check to Ruby makes this method an additional 1.5 times
faster compared to doing the check in the SQL query.

With performance being improved I've now also tweaked the amount of
iterations required by the User.by_login benchmark. This method now runs
between 900 and 1000 iterations per second.

By using a JOIN we can remove the need for using 2 separate queries to
find a project by its namespace. Combined with an index (only needed for
PostgreSQL) this reduces the query time from ~245 ms (~520 ms for the
first call) down to roughly 10 ms (~15 ms for the first call).

Seed-Fu runs this entire fixture in a transaction, so the `after_commit`
hook won't run until after the fixture is loaded. That is too late
since the Sidekiq::Testing block has already exited. Force clearing
the `after_commit` queue to ensure the job is run now.

See: gitlab-org/gitlab-development-kit#58

This option only existed to ease the CI-to-CE/EE migration process.

This commit partially reverts 8b05abe8

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

- It delegates name, path, gitlab_url, ssh_url_to_repo
- Remove ability to set this parameters using CI API

This fixes GitLab project rename, namespace change, repository rename, etc.