This is a first step to decouple pipeline from YAML processing. It
reduces the coupling by removing some methods that introduce coupling
and by moving logic into separate chain element that is being used to
populate pipelines with stages and builds.

Conflicts:
	spec/models/ci/pipeline_spec.rb

Conflicts:
	app/services/ci/create_pipeline_service.rb
	app/services/ci/pipeline_trigger_service.rb

Move email footer info to a single line -- EE merge edition

See merge request gitlab-org/gitlab-ee!5066

Break utils functions for security issues

See merge request gitlab-org/gitlab-ee!5064

[ci skip]

[ci skip]

Geo - Avoid rescheduling the same project again in a backfill condition

See merge request gitlab-org/gitlab-ee!5069

See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/17916

From
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/5031#note_64372406

CE upstream - 2018-03-21 00:25 UTC

See merge request gitlab-org/gitlab-ee!5054

Add docs for ChatOps

See merge request gitlab-org/gitlab-ee!5033

Merge branch '5358-hard-failing-mirror-fails-for-personal-project-with-blocked-owners' into 'master'

Resolve "Hard-failing a mirror fails for personal projects with blocked owners"

Closes #5358

See merge request gitlab-org/gitlab-ee!5063

Also log Prometheus metrics from the primary

Closes #5373

See merge request gitlab-org/gitlab-ee!5058

Move db/migrate/20171222151344_add_regexp_uses_re2_to_push_rules.rb

See merge request gitlab-org/gitlab-ee!5060

Closes gitlab-org/gitlab-ee#5373.

Geo - Switch from time-based checking of outdated checksums to the nil-checksum-based approach

Closes #5176 and #5346

See merge request gitlab-org/gitlab-ee!4910

Improve wording of cluster monitoring docs

See merge request gitlab-org/gitlab-ee!5056

fix spelling of fdw table name that caused 500 error

See merge request gitlab-org/gitlab-ee!5040

to ee directory.

Port of "Refactor ConfirmDangerModal into ES module" to EE

See merge request gitlab-org/gitlab-ee!5044

Merorize report artifacts into instance variables

See merge request gitlab-org/gitlab-ee!5016

EE port of make-ide-ce

See merge request gitlab-org/gitlab-ee!5045