Allow to test JIRA service when project does not have repository

closes #23032

See merge request !7162

Show pipeline status from branch and commit than only commit

Closes #23615

See merge request !7034

Add setting to only allow merge requests to be merged when all discussions are resolved

_Originally opened at !6385 by @rodolfoasantos._

- - -

## What does this MR do?
Based on #20968 this merge request adds setting only to allow merge requests to be merged when all discussions are resolved. 

## Are there points in the code the reviewer needs to double check?
Check if there are other points to add the resolved discussion setting

## Why was this MR needed?
Add the possibility to configure the project to only accept merge request when all discussions are resolved

## Screenshots

![only_allow_merge_if_all_discussions_are_resolved](/uploads/9388db9421da0214590ffab6fb29f985/only_allow_merge_if_all_discussions_are_resolved.png)

![only_allow_merge_if_all_discussions_are_resolved_msg](/uploads/b1bba0c72ad67d3a1b34718baa08526e/only_allow_merge_if_all_discussions_are_resolved_msg.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] API support added
- Tests
  - [x] Added for this feature/bug
  - [ ] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

Closes #20968

See merge request !7125

https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/changelog.md

* upstream/master: (35 commits)
  Only skip group when it's actually a group in the "Share with group" select
  Fix: Todos Filter Shows All Users
  Fix: Guest sees some repository details and gets 404
  Move shared params to a helper
  GrapeDSL for project hooks
  Update commits.scss
  updated styling commit SHA on branches page + added to changelog
  change build list height to show 6,5 builds + improve padding of list, with first/last child selectors
  Ignore builds directory from eslint
  Add changelog entry
  Document multiple repository storage paths
  Allow multiple repository storage shards to be enabled, and automatically round-robin between them
  Cleaned up global namespace JS
  Add tip for using Chrome to run and debug teaspoon tests.
  Add CHANGELOG entry file
  Add jquery.timeago.js to application.js
  Update match-regex to fix filename convention
  Move jquery.timeago to vendor directory
  Change a bunch of doc links to either relative or https://docs.gitlab.com.
  Show log corresponding to env in admin/logs
  ...

Fix: Todos Filter Shows All Users

Closes #22588

See merge request !7258

Signed-off-by: Rémy Coutable <remy@rymai.me>

Only skip group when it's actually a group in the "Share with group" select

Fixes #23961

See merge request !7262

Fix: Guest sees some repository details and gets 404

Closes #24056

See merge request !7222