Backport: Include subgroup issuables on the group page

See merge request gitlab-org/gitlab-ee!4341

Allow to find epics by the given time frame

See merge request gitlab-org/gitlab-ee!4247

[EE] Enable RuboCop Style/RegexpLiteral

See merge request gitlab-org/gitlab-ee!4334

# Conflicts:
#	spec/finders/issues_finder_spec.rb
#	spec/finders/merge_requests_finder_spec.rb

CE upstream - 2018-02-01 04:46 UTC

Closes omnibus-gitlab#3128

See merge request gitlab-org/gitlab-ee!4339

Closes gitlab-org/omnibus-gitlab#3128

CE upstream - 2018-02-01 00:23 UTC

Closes gitlab-qa#160

See merge request gitlab-org/gitlab-ee!4338

Add a QA scenario for creating an issue

Closes gitlab-qa#160

See merge request gitlab-org/gitlab-ce!16802

Replace $.ajax in find file with axios

See merge request gitlab-org/gitlab-ce!16841

Replace $.ajax in activity calendar with axios

See merge request gitlab-org/gitlab-ce!16839

Remove some Rugged dependencies from Repository

See merge request gitlab-org/gitlab-ee!4333

Remove Rugged::Walk implementation of #log

See merge request gitlab-org/gitlab-ce!16798

CE upstream - 2018-01-31 18:23 UTC

Closes #4761

See merge request gitlab-org/gitlab-ee!4335

Resolve "Remove geo-specific git version check"

Closes #4762

See merge request gitlab-org/gitlab-ee!4331

Merge branch '4761-follow-up-from-resolve-developers-should-be-able-to-create-new-projects-in-group' into 'master'

Refactor groups controller to match EE

Closes gitlab-ee#4761

See merge request gitlab-org/gitlab-ce!16832

Resolve "Developers should be able to create new projects in group"

Closes #2534

See merge request gitlab-org/gitlab-ee!4046

[ci skip] Fix example commands to refer to the correct versions

See merge request gitlab-org/gitlab-ce!16683

Move mr widget related links into a vue file

See merge request gitlab-org/gitlab-ce!16825

CE upstream - 2018-01-31 15:29 UTC

Closes gitaly#979 et gitaly#967

See merge request gitlab-org/gitlab-ee!4330

Resolve "Improved visualization of SAST results in MR widget"

Closes #3995 and #4358

See merge request gitlab-org/gitlab-ee!4017

[Geo doc] Keep in mind multiple secondaries when setup database replication

Closes #4740

See merge request gitlab-org/gitlab-ee!4316

Replace $.get in render math with axios

See merge request gitlab-org/gitlab-ce!16697

# Conflicts:
#	app/assets/javascripts/api.js
#	app/views/admin/dashboard/index.html.haml
#	locale/gitlab.pot
#	spec/javascripts/api_spec.js

[ci skip]