This reverts merge request !6429

We will trust redis configuration params loading to Gitlab::RedisConfig.

This adds the 2016 emoji as well as support for using SVG images instead of PNGs.

It also fixes a number of incorrectly categorized emoji and other minor issues.

Upgrade Rake task for Gemojione 3.0.0 and generate sprites.

Upgrade aliases.json by pulling down index.json from the gemojione repository and running the generate_aliases.rb file.

Changelog: https://github.com/jonathanwiesel/gemojione/blob/master/CHANGELOG.md#v301-2016-07-16

For the specific emoji added to the Unicode standard, see: http://emojione.com/releases/2.2.4/

Huge kudos to Jonathan Wiesel (@jonathanwiesel) for his work on the gemojione gem!

1. Only on supported Chrome versions

2. Mainly, this lets us simplify the javascript-based U2F check to
   `window.u2f`, where `window.u2f` can either be loaded from the GitLab
   server (for Chrome) or from the Firefox extension.

3. This is a better way to provide browser detection for U2F.

This reverts commit 13e37a3e.

Replace raphael-rails with raphael.js so it can be split from the rest of the JavaScript. The gem isn't maintained anymore anyway. Added a network folder with an application.js including raphael components, since that's the only page using it currently.

This reverts commit 3e991230.

# Conflicts:
#	app/models/project.rb

Since we eager load everything in lib/ putting ERB code in .rb files
will result in syntax errors. By moving the templates to
./generator_templates we can work around this.

Based on:
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/151

- Fix naming of API::CommitStatuses
- Ensure we use require_dependency instead of require
- Ensure the namespace is right in lib/api/api.rb, otherwise, we
  might require Grape::API::Helpers which defines the `#params` method.
  This is to avoid requiring a file multiple times and getting an "Already
  initialized constant" error.
Signed-off-by: NRémy Coutable <remy@rymai.me>

Attempts to address #13521, #14825
Signed-off-by: NRémy Coutable <remy@rymai.me>

This reverts commit 0a280158.

Adds Sentry DSN, Webhooks, Deploy Keys, etc.

Alphabetized the parameters and included line breaks between each parameter. Easier to merge into EE if there are any differences.

This also seems to be the more popular syntax for adding new parameters, from what I can find.

- So that the server doesn't have to be restarted for every change in dev.

# Conflicts:
#	Gemfile.lock

* Add Labels tab to Groups
* Add decorator for label so it's aware of Milestones.

in order to have it the same way like in omnibus

This allows 'rake cache:clear' to delete millions of keys without
choking. It requires Redis 2.8.0 or newer but we needed that already
anyway.

Now that we're serving assets directly from the Gemojione gem's path,
the images are not in an `emoji/` sub-folder.