Remove mirror webpack bundle entry

See merge request gitlab-org/gitlab-ee!4796

CE upstream - 2018-03-02 12:25 UTC

Closes gitaly#1046

See merge request gitlab-org/gitlab-ee!4807

# Conflicts:
#   config/webpack.config.js

Remove ldap group links webpack entry point

See merge request gitlab-org/gitlab-ee!4795

Removed webpack bundle tag for add_gitlab_slack_application

See merge request gitlab-org/gitlab-ee!4811

[port] Add metrics in merge request api

See merge request gitlab-org/gitlab-ee!4808

Remove 2 factor authjs webpack bundle tag

See merge request gitlab-org/gitlab-ee!4706

Removed burndown_chart webpack bundle

See merge request gitlab-org/gitlab-ee!4809

Introduce common incoming email setup doc and new issue by email doc

Closes gitlab-ce#41046 and gitlab-ce#24849

See merge request gitlab-org/gitlab-ee!3833

File uploads on objects storage should use hashed storage

Closes #4952

See merge request gitlab-org/gitlab-ee!4597

# Conflicts:
#   config/webpack.config.js

# Conflicts:
#	config/webpack.config.js
#	db/schema.rb
#	locale/gitlab.pot

[ci skip]

CE upstream - 2018-03-01 21:23 UTC

See merge request gitlab-org/gitlab-ee!4798

[EE] Support additional LabelsFinder parameters for group labels

See merge request gitlab-org/gitlab-ee!4780

Fetch commit signatures from Gitaly in batches

Closes gitaly#1046

See merge request gitlab-org/gitlab-ce!17456

Support additional LabelsFinder parameters for group labels

See merge request gitlab-org/gitlab-ce!17447

Because epic index page includes also epics from subgroups
it's necessary to also get descendant group labels for filtering.
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/4773#note_61236542

Add some strings that were missing in gitlab.pot

See merge request gitlab-org/gitlab-ee!4799

Allow CI/CD Jobs being grouped on version strings

See merge request gitlab-org/gitlab-ce!17455

In some situations (listing labels for epics) we want to
list only group ancestor labels, this is already supported
in LabelsFinder we just need to enable additional parameters.

Also `set_issuables_index` method now loads project labels only if
@project is set (which is not used for epic group labels).

Update documentation WRT to request parameters

See merge request gitlab-org/gitlab-ce!17469

Document how to use external tracking database

Closes #4884

See merge request gitlab-org/gitlab-ee!4772