Allow admin to create public deploy keys that are accessible to any project.

Addresses private issue https://dev.gitlab.org/gitlab/gitlabhq/issues/1774.

Project settings:

![Screen_Shot_2015-03-27_at_14.46.48](https://gitlab.com/gitlab-org/gitlab-ce/uploads/01799ff912671ba6db3f828ea1aca1a6/Screen_Shot_2015-03-27_at_14.46.48.png)

The "Public deploy keys" section is only shown when there are any. If there are public deploy keys but no project deploy keys, only public deploy keys are shown. If there are no public deploy keys and no project deploy keys, the current "Deploy keys from projects you have access to will be displayed here" placeholder is shown.

The list of projects below the public key has been changed to only show projects the user has access to.

"Public deploy key" seems to be repeated on the left, but the first is just the title. The label is always visible for public deploy keys.

Admin index:

![Screen_Shot_2015-03-27_at_14.47.06](https://gitlab.com/gitlab-org/gitlab-ce/uploads/ea889d274cfd3f0694d47d602f4f3e94/Screen_Shot_2015-03-27_at_14.47.06.png)

Admin detail page:

![Screen_Shot_2015-03-27_at_14.47.16](https://gitlab.com/gitlab-org/gitlab-ce/uploads/8c8475e05bf6b497da3b9f1bc102329f/Screen_Shot_2015-03-27_at_14.47.16.png)

Projects using the deploy key are listed on the left and can be disabled easily.

See merge request !469

Bust group page project list cache when namespace name or path changes.

Fixes gitlab-com/support-forum#144.

See merge request !509

document support for inline HTML

fix link to details on how to run the tests

[ci skip]

Prevent arbitary local repos from being imported.

Fixes gitlab/gitlab-ee#263.

See merge request !1763

Fix persistent XSS vulnerability around profile website URLs.

Fixes gitlab/gitlab-ee#268

See merge request !1761

Upon successful login, clear `reset_password_token` field

Closes #1942

See merge request !1757

Rename all uses of Buildbox to Buildkite

Closes #2214

See merge request !1759

Fix typo

See merge request !511

Bump gitlab-shell

Fix git over ssh errors 'fatal: protocol error: bad line length character'
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

cc @DouweM @patricio

See merge request !506

Fix event-title max-width in the dashboard

Include creator_id in project info of API

Revert "Preload lib/"

This reverts commit 5511a731.

The original commit added this because it also enabled threadsafety, a change which was itself later reverted in 66d6c809, but this got left behind.

I don't fully understand the reasoning behind it so if I'm wrong, please tell me.

My reasoning for reverting it is that it messes with Rails' (and by extension Spring's) class reloading during development. When I was working in `lib/gitlab/markdown` and had to stop and restart the server every time I made a change, I didn't know it at the time, but this was why. That was a huge pain point.

If it's needed for production perhaps we could add a `if Rails.env.production?` clause around it so that it doesn't mess with development.

See merge request !1758

Update redcarpet to 3.2.3

Closes #2211

See merge request !1756

Fix broken file browsing with a submodule that has a relative link

## What does this MR do?

This MR fixes an error that occurs when browsing a submodule with a relative link.

### Are there points in the code the reviewer needs to double check?

I re-wrote the function because I was confused by how the first one was supposed to work. Please review if it's clearer.

### Why was this MR needed?

A 500 Error would occur when using the file browser on a repo with a submodule. Here's how to reproduce the bug:

1. Start a new project in GitLab.
2. Clone git://git.gniibe.org/gnuk/gnuk.git/ locally.
3. Push repo to new project.
4. Click on "Files" in the project.

The .gitmodules file:
```
[submodule "chopstx"]
        path = chopstx
        url = ../../chopstx/chopstx.git
```
### What are the relevant issue numbers / [Feature requests](http://feedback.gitlab.com/)?

1. #775
2. #1385
3. https://github.com/gitlabhq/gitlabhq/issues/8153
4. https://github.com/gitlabhq/gitlabhq/issues/8881
5. https://github.com/gitlabhq/gitlabhq/issues/7554

See merge request !508

Move current user to the top of the list in author/assignee filter

### What does this MR do?

This MR puts the current user at the top of the user list in the author/assignee filters.

### Are there points in the code the reviewer needs to double check?

Is it best to do this in the JavaScript as it is in this MR, or are we better off adding an argument to the `/users` API to put the current user on top?

Also, I elected to put the current user after "Any" and "Unassigned"--it looked better. Do you agree?

### Why was this MR needed?

If you're trying to look for "Me" in the list, often you have to scroll down a long way to find yourself. Using the filter to find yourself is yet another step requiring the keyboard, and it's easy to forget that feature is available.

### What are the relevant issue numbers / [Feature requests](http://feedback.gitlab.com/)?

#1321 and #1396

### Screenshots

Before:

![Screen_Shot_2015-04-08_at_11.18.44_PM](https://gitlab.com/stanhu/gitlab-ce/uploads/4c28ae5a3a51a8329c806ecfbc549071/Screen_Shot_2015-04-08_at_11.18.44_PM.png)

After:

![Screen_Shot_2015-04-08_at_11.20.06_PM](https://gitlab.com/stanhu/gitlab-ce/uploads/ff3b8bdf38467236edbcc29401cd1235/Screen_Shot_2015-04-08_at_11.20.06_PM.png)

See merge request !505

Closes #775

This option defaults to true in RedCarpet 3.2.0, but we handle
sanitization later in the process with html-pipeline.

Closes #2211

These files don't match their naming convention, but for organizational
purposes it makes sense.