Fix dev user seed: multiple ID was used twice.
Use blob local instead of instance.
Disable / hide MR edit blob button if cannot edit.
Add tests for tree edit routes

Critical because of possible confusion between /:id/preview
and /:id for a path that ends in preview.
Remove unused has_gitlab_shell3? method
update order of upgrade guide

GitLab needs to be stopped when backup is took.
Update gemnasium-gitlab-service to version 0.2.3
Add documentation for the Sidekiq MemoryKiller
Remove unfinished file with the wrong name
transfer error handler
Add link to 'operations' README
Add theme type css class
Merge branch 'doc/sidekiq_memory_killer' into 'master'

Add documentation for the Sidekiq MemoryKiller

We already merged the code, and we are already using it on gitlab.com. This MR adds documentation.

See merge request !1325
add kerberos to Gemfile
Merge branch 'update_gemfile_with_kerberos' into 'master'

Add kerberos to gemfile

See merge request !1330
Update the Omnibus package in Dockerfile

From 7.5.2 to 7.5.3.

Signed-off-by: kfei <kfei@kfei.net>
Reduce the size of Docker image

1) Add `--no-install-recommends` option to `apt-get install`, this
   avoids lots of (~30MB) unnecessary packages.
2) Add `ca-certificates` package for `wget` fetching stuffs from Amazon
   S3.
3) There is no need to run `apt-get clean` for an image derived from
   official Ubuntu since they already cleaned (see also:
   http://goo.gl/B2SQRB) all the garbages produced by `apt-get`.

Signed-off-by: kfei <kfei@kfei.net>
Move development information to the GitLab Development Kit.
Merge pull request #8375 from bbodenmiller/process-fix

update order of upgrade guide
Merge branch 'dev-docs-in-gdk' into 'master'

Dev docs in gdk

Also see https://gitlab.com/gitlab-org/gitlab-development-kit/merge_requests/31

See merge request !1331