This adds some duplication, but this helper is temporary.

There wasn't really a reason to have them as a constant, and we were
getting "already defined" warnings which are always annoying.

Some usages of the `gfm` helper depend on the text not being rendered as
standard Markdown. Ugh.

We need to send `path`, not `requested_path`.

Some views are still calling `gfm` directly. We'll need to update them
to instead call `markdown` with a `pipeline: ...` argument.

This module is now the sole source of knowledge for *how* we render
Markdown (and GFM).

Properly daemonize the mail_room process

The old invocation only worked by accident because we have a '&'
somewhere in the init script for expediency. When ran from a terminal,
the mail_room daemon process ended up in the session of the terminal.
This commit adds a small wrapper that tries to do the textbook
daemonization steps (double fork, setsid etc.) while also taking
care that the pidfile is written before the 'start' process exits.

See merge request !1221

Apply syntax highlighting to fenced code blocks client-side

Instead of applying the syntax highlighting scheme class to these blocks
server-side, we use Javascript and Gon to apply the user's color scheme
(or the default) client-side.

This will make it easier to cache these blocks in the future because
they're no longer state-dependent.

See merge request !1203

The old invocation only worked by accident because we have a '&'
somewhere in the init script for expediency. When ran from a terminal,
the mail_room daemon process ended up in the session of the terminal.
This commit adds a small wrapper that tries to do the textbook
daemonization steps (double fork, setsid etc.) while also taking
care that the pidfile is written before the 'start' process exits.

UI improvements

* use shared partials for repeating rendering of projects, groups, snippets etc
* more consistency in way how projects, snippets and groups lists are rendered
* fix 500 error when submit project snippet without body
* remove some old and unused css
* more compact search page

See merge request !1214

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>

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>

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>

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

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

Prevents an unstyled flash that occurs when we were only applying the
syntax highlighting class in Javascript. Now for these uncached blobs
the server can add the syntax class, and for (possibly) cached fenced
code blocks, the Javascript will add it as needed.

Update PreferencesHelper specs

Update mail_room

See merge request !1213

Enable SSL verification for Webhooks

https://dev.gitlab.org/gitlab/gitlabhq/issues/2121

See merge request !1135

Update CHANGELOG for released 7.14.1

[ci skip]

See merge request !1211

Prevent too many redirects error when home page URL set to external_urll

Many users naively set the home page URL setting to external_url
(e.g. https://mydomain.com). When an unauthenticated user signs in, this
causes endless redirections. For example, this is occuring:

1. Unauthenticated user attempts to access https://mydomain.com/dashboard
2. Application redirects to the home page URL: https://mydomain.com
3. Repeat step 2

In step 3, ApplicationController should have redirected the user to
https://mydomain.com/users/sign_in. Disabling the redirection if home
page URL is the same as external_url prevents users from messing up.

* Closes https://github.com/gitlabhq/gitlabhq/issues/8843
* Closes #2057

See merge request !1210