Add a download buttons for Build Artifacts
## What does this MR do?
This MR adds a download buttons for build artifacts of latest succesful pipeline in:
- dashboard of project,
- branches and tags views,
- and tree viewer
Implement #4255
## What are the relevant issue numbers?
Closes #4255, Closes #14419
## Screenshots
### Project main
### Branches
### Tags
### Source Tree
## Does this MR meet the acceptance criteria?
- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] Download buttons
- [x] Models
- [x] Routes
- [x] Projects::ArtifactsController
- [x] API
- Tests
- Rails
- [x] Project#builds_for
- [x] branch name with slashes
- [x] only success builds
- [x] only latest builds
- [x] feature tests for download buttons
- API
- [x] branch name with slashes
- [x] only success builds
- [x] only latest builds
- [x] All builds are passing
- [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)
See merge request !5142
Add new icon for created pipeline ## What does this MR do? Adds new icon for `created` status ## Screenshots (if relevant)  ## What are the relevant issue numbers? Closes #21520 See merge request !6108
Add test for closed MR without fork Add view test visibility of Reopen and Close buttons Fix controller tests and validation method Fix missing space Remove unused variables from test closed_without_fork? method refactoring Add information about missing fork When closed MR without fork can't edit target branch Tests for closed MR edit view Fix indentation and rebase, refactoring
Add body as data-container on pipeline graph tooltip ## What does this MR do? Fixed data tooltip getting cut off ## What are the relevant issue numbers? Closes #21070 ## Screenshots (if relevant)  See merge request !5955
* upstream/master: (107 commits) Fix external issue tracker "Issues" link leading to 404s Fix CHANGELOG entries related to 8.11 release. Fix changelog Reduce contributions calendar data payload Add lock_version to merge_requests table Add hover color to emoji icon Fix wrong Koding link Capitalize mentioned issue timeline notes Fix groups sort dropdown alignment Use icon helper Fix inline emoji text alignment Adds response mime type to transaction metric action when it's not HTML Moved two 8.11 changelog entries to 8.12 Fix markdown link in doc_styleguide.md Display project icon from default branch Reduce number of database queries on builds tab Update CHANGELOG Update Issue board documentation Label list shows all issues (opened or closed) with that label Update CHANGELOG ...
Closes #21043
* upstream/master: (192 commits) Added CHANGELOG Added unfold test to parallel and added 'diff discussion' context Fix Spinach branches spec Better first match on this MR also Change merge_error column from string to text type Fix typo in gitlab_flow.md entities: make Environment inherit EnvironmentBasic Updated to optimized specs from !5864 Added 'with an unfolded line should not allow commenting' scenario (line 125) Added addtional 'renderable' validator to check 'data-note-type' attr exists Allow passing an index to selectRowAtIndex Fixed enter key in search input not working Fix file links on project page Files view Fix incorrect "stopped impersonation" log message 8.11 is released, long live 8.12 Also check if Akismet is enabled, before showing the `Submit as spam` button. fix location of markdown help location Fix for update 8.10-to-8.11.md doc. Appease the linter. Add Ruby 2.3 upgrade notes. ...