* upstream/master: (49 commits)
Fire system hooks when a user is created via LDAP or OAuth
Common Docker Documentation Location in `gitlab-ce`
fix deprecation warning present during webpack compiles
Enable 5 lines of Sidekiq backtrace lines to aid in debugging
Add support for copying permalink to notes via more actions dropdown
Docs: update - fix headers
Handle creating a nested group on MySQL correctly
Decrease statuses batch size even more in a migration
Fix failure when issue author is nil
Fix searching for files by path
Fix invite by email address duplication
Revert "Merge branch 'mk-reenable-mysql-tests-on-all-branches' into 'master'"
Fix repo editor scrollbar
Revert "Merge branch 'sh-sidekiq-backtrace' into 'master'"
Replace 'source/search_code.feature' spinach test with an rspec analog
Add missing third argument to `Git::Repository#initialize` in spec
New doc: how to install GitLab on Azure
Authorizations regarding OAuth - style confirmation
Enable 5 lines of Sidekiq backtrace lines to aid in debugging
Reenable MySQL tests on all branches
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