Merge branch 'ee-29925-gitlab-shell-hooks-can-no-longer-send-absolute-paths-to-gitlab-ce' into 'master'

29925 gitlab shell hooks can no longer send absolute paths to gitlab ce

See merge request !1832

Port of 12910-personal-snippets-notes

See merge request !1830

Check if license exists before checking the addon.

Closes #2355

See merge request !1829

Store the last time a repository was updated

See merge request !1788

Disable mirror workers for Geo secondaries

See merge request !1671

# Conflicts:
#	app/views/snippets/show.html.haml
#	spec/helpers/notes_helper_spec.rb

CE upstream: Thursday

Closes #2251 and gitaly#157

See merge request !1818

This new param allows us to share project information between components
that don't share or don't have access to the same filesystem
mountpoints, for example between Gitaly and Rails or between Rails and
Gitlab-Shell hooks. The previous parameters are still supported, but if
found, gl_repository is prefered. The old parameters should be deprecated
once all components support the new format.

Fix email receiver metrics events

See merge request !1828

Remove superfluous wording on push rules

See merge request !1811

`Project#inspect` isn't very useful for examining usage of these features.

EE port of "Display slash commands outcome when previewing Markdown"

See merge request !1707

Order rejected paths like in EE

See merge request !1821

Create new branch from issue page

See merge request !1808

Revert "Shorten and improve some job names"

See merge request !1825

This reverts commit f2fc716c

Added EOF newline to static-analysis script

See merge request !1824

Timecop.freeze in a before block should always be paired with Timecop.return
in an after block

restrict individual approvers to project members

Closes #1593

See merge request !1691

Resolve "Improve UX of Geo admin page"

Closes #1975

See merge request !1777

Customers using remote mirrors would see errors in their Sidekiq logs after
the worker attempted to update its database.  We should disable this until we
have a better way of synching the mirror workers.

See #1598