Refactor code to allow multiple issue boards management for projects
in CE

Refactor code to allow multiple issue boards management for projects
in CE

Bring Manual Ordering on Issue List

See merge request gitlab-org/gitlab-ee!14134

Bring Manual Ordering on Issue List

See merge request gitlab-org/gitlab-ce!29410

On all the issue lists -- Group, Project and Dashboard -- this
change adds a new option for managing the lists.

"Manual Ordering" option is added which when flipped on will allow
an user to drag and drop issues around to create a relative ordering
among them.

Execute snippet test on a private snippet instead of public

Closes gitlab-org/quality/staging#49

See merge request gitlab-org/gitlab-ce!29834

Vue-i18n: autofix for app/assets/javascripts/diffs directory

See merge request gitlab-org/gitlab-ce!29963

i18n linting for .vue files under the
app/assets/javascripts/diffs directory

EE Port - Vue-i18n: app/assets/javascripts/diffs directory

See merge request gitlab-org/gitlab-ee!14331

i18n linting for .vue files under the
app/assets/javascripts/diffs directory

Quarantine >user submits, discards batch comments<

See merge request gitlab-org/gitlab-ee!14363

Sanity check for GraphQL authorized?

See merge request gitlab-org/gitlab-ce!29921

Adding a link using comments to be able to track what issue
is actually responsible for this test to be quarantined.

Docs: Add more info on recovery codes

See merge request gitlab-org/gitlab-ce!29879

Add note about Docker socket mounting

See merge request gitlab-org/gitlab-ce!29924

Set 2 weeks as the expiration time for the current broadcast message

See merge request gitlab-org/gitlab-ee!14379

Geo - Use Gitlab::JsonCache only for the persistent cache on Gitlab::Geo

Closes #12374

See merge request gitlab-org/gitlab-ee!14378

Set 2 weeks as the expiration time for the current broadcast message

See merge request gitlab-org/gitlab-ce!30062

Parse the cached value when it is false on Gitlab::JsonCache#read

See merge request gitlab-org/gitlab-ce!30061

Fix Jupyter-Git integration

See merge request gitlab-org/gitlab-ce!30020

Add missing unit tests for BoardService

See merge request gitlab-org/gitlab-ce!29988

CE port of new user signup with/without reCAPTCHA A/B test (no-op)

See merge request gitlab-org/gitlab-ce!29341

RecaptchaExperimentHelper contains helper methods
to assist in the controller and view layers.

New user signup with/without reCAPTCHA A/B test

See merge request gitlab-org/gitlab-ee!14019

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/29921#note_184713939

Raise an exception if a developer calls any of the GraphQL authorization
methods and a `authorize :permission` is missing from a mutation class.

Previously `authorized?` would return `true` in this situation, which
although technically is accurate is not what a developer is intending.