Fix bug related to filtering Issues by Label/Milestone.

See merge request !3499

Build updates

Fixes #10851 

![build-updates](/uploads/52e09e679ca457f3d818f9a12fd8382b/build-updates.gif)


See merge request !2604

Add endpoints for archiving and unarchiving

Closes #14296

See merge request !3372

Don't fetch any tags from a forked repo

Closes #13957

See merge request !3504

  This problem only was affecting the dev env.

Two level hierarchy  in navigation sidebar
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !3494

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Closes #13957

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Remove 1px whitespace between nav tabs and underline when form present
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !3489

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Notes/discussions header

Part way towards getting the design for issues/merge requests to look more like the design in #3401 - I have standardised the headers for both issues & merge requests comments and discussions.

See merge request !3441

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Added & use Gitlab::Routing for URL helpers

Extracted from !3389

See merge request !3486

[ci skip]
Signed-off-by: Rémy Coutable <remy@rymai.me>

Memoize reference_pattern/link_reference_pattern

Extracted from !3389

See merge request !3485

spec and fix for fogbugz lonely user problem

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/14766

I encountered this issue while manually testing all import types for
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/3066

This is really due to a horrible API

```
{ 'people' => { 'person' => array_of_people_or_single_person_as_hash } }
```

See merge request !3457

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Revert "Merge branch 'users_should_not_be_able_upvote_downvote' into 'master'"

This reverts merge request !3406

See merge request !3491

Allow temp-oauth-email as notification email

Closes #14559 

/cc @dblessing @rymai 

See merge request !3477

This reverts merge request !3406

Prevent users from being able to both upvote and downvote

closes #14480 

![thumbs](/uploads/d0d64f08dbf271fe969b44c68f424123/thumbs.gif)

See merge request !3406

Fix divider in dropdown when not needed

closes #14533
## Before
![Screen_Shot_2016-03-25_at_12.35.21_AM](/uploads/20f386c9c45c9ee8716835ccfa0066ed/Screen_Shot_2016-03-25_at_12.35.21_AM.png)

## After
![Screen_Shot_2016-03-25_at_12.37.27_AM](/uploads/22db62db920017da5fe1da7670fbbb0e/Screen_Shot_2016-03-25_at_12.37.27_AM.png)

See merge request !3394

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Rails' "url_helpers" method creates an anonymous Module (which a bunch
of methods) on every call. By caching the output of this method in a
dedicated method we can shave off about 10 seconds of loading time for
an issue with around 200 comments.

These methods are called quite often in loops so by memoizing their
output we can reduce timings a bit.

Fixes issue with dropdowns not selecting values

Fixes issue with dropdowns not selecting when navigating between tabs

Closes #14813

See merge request !3478