Flush repository caches before renaming projects
This should hopefully solve gitlab-org/gitlab-ce#13790. Once I know the exact steps to reproduce the problem I should be able to confirm this.
cc @dblessing @inem
See merge request !2974
Don't show "Welcome to GitLab" when the search didn't return any projects
Fixes#13785. /cc @pixdrift
### Before

### After

See merge request !3059
Fix permissions for deprecated CI build status badge
This fixes permissions for deprecated status badge, being unavailable even if project is public.
Closes#13324
See merge request !3030
Fix import from gitlab.com fails
_Originally opened at !2896 by @kazsw._
- - -
Fixes#12652
CGI.escape encodes '/' by default.
Second argument can be removed.
See merge request !2988
Fix issue with overlap of sidebar links.
Thanks @iamphill for the help with this one.

cc @iamphill @alfredo1 @dzaporozhets @rymai
See merge request !3043
Don't show any "2FA required" message if it's not actually required
Prior, if the user had enabled and then disabled 2FA, they would be
shown a "You must enable Two-factor Authentication for your account."
message when going back to re-activate it, even if 2FA enforcement was
disabled.
See merge request !3014
Improve implementation to check read access to forks and add pagination.
Fixes#13648
The following optimizations where made:
- Pagination was added.
- Code to check for read permissions to forks was optimized, in the past we were doing too many queries for each project.
See merge request !2991
Branded appearance to CE
Closes#11489
The difference with the EE version is only that there is no distinction between light and dark logos, though this wasn't used anyway. If this is fine, I'll create a MR on EE too.
TODO:
- [x] Copy docs
- [x] Make new screenshots
- [ ] Remove Custom Welcome message feature?
@rymai: I was unsure what labels to add to ping you, so I just ping you like this 😉
/cc @DouweM
See merge request !2927
Created helper class to hide content in issue sidebar when collapsed

Closes#13764
See merge request !2968
Move "I should see Crowd login form" feature to a view spec
We were doing all kinds of code gymnastics to "enable" Crowd in the
feature spec and this would sometimes cause a transient failure.
Really what it's testing is if the Crowd login form shows when Crowd's
enabled, so this is much better suited to a view spec.
See merge request !2963
Sidebar overlaps content when screen is below 1200px.
When screen is below 1200px, the sidebar overlaps.
When screen is above 1200px, the sidebar pushes content out.
z-index change to make sure hamburger stays on top.
Fixes#12717


Also sorry I couldn't get the collapse button in the screen cap. It's there.
See merge request !2620
Changed padding & background color for highlighted notes
Closes#12453

See merge request !2937
Fix group projects styles
Makes new project button visible when no projects are available.
Fixes#13193



cc @creamzy @skyruler
See merge request !2714
Issues can be dragged & dropped into empty milestone lists
This is also possible with MRs. Also fixed an issue where MRs weren't sortable
Fixes#13668

See merge request !2935
Ensure we don't check a commit's description for revert message if it has no description
Fixes#13631.
/cc @razer6 @grzesiek @yorickpeterse @rdavila
See merge request !2917