This adds support for AWS S3 SSE with S3 managed keys, this means the
data is encrypted at rest and the encryption is handled transparently to
the end user as well as in the AWS Console. This is optional and not
required to make S3 uploads work.

Fix bug where projects would appear to be stuck in the forked import state

A race condition existed between when Rails committed the `import_status` to
`started` and when the Sidekiq worker forked a project. If this fork were quick,
it's possible that the worker would attempt to move into the `finished` state
before the `started` state took effect.

As mentioned in https://github.com/mperham/sidekiq/wiki/Problems-and-Troubleshooting#cannot-find-modelname-with-id12345,
we can either delay the worker to ensure the DB has a chance to update, or use the nice `after_commit_queue` gem to schedule the task after the state machine commit. See:

* https://github.com/pluginaweek/state_machine/issues/191 
* https://github.com/shellycloud/after_commit_queue


Closes #2736

See merge request !1434

Make sure Unicorn listens on localhost:8080

Some installations from source run into this when upgrading to 8.0.

See merge request !1435

Closes #2692

Fix Error 500 occuring with repositories that have a bad HEAD

A repository could have objects but no valid HEAD, causing `project.commit` to be `nil`.

See merge request !1433

A race condition existed between when Rails committed the `import_status` to
`started` and when the Sidekiq worker forked a project. If this fork was quick,
it's possible that the worker would attempt to move into the `finished` state
before the `started` state took effect.

As mentioned in https://github.com/mperham/sidekiq/wiki/Problems-and-Troubleshooting#cannot-find-modelname-with-id12345,
we should delay the worker to ensure the DB has a chance to update.

Closes #2736

A repository could have objects but no valid HEAD, causing
`project.commit` to be `nil`.

Hook api updates



See merge request !1429

Get CI token from ci projects

This fixes problem when GitLabCiService had different token than stored
in Ci::Project.

See merge request !1425

Update 7.14-to-8.0.md

Update mailroom to 0.5.2

Fixes #2698 and #2711.

See merge request !1424

Add the newrelic-grape gem

This allows us to see a breakdown of API requests in New Relic.

See merge request !1419

Fix default avatar not showing up in network graph

The change in 71cdb249 removed the `/assets` path in the default avatar to eliminate runtime errors, but this was one place where `image_path` was missed. If the user full URL is specified, `image_path` does nothing.

Closes https://github.com/gitlabhq/gitlabhq/issues/9657

See merge request !1411

Add Troubleshooting section to 8.0 docs

[ci skip]

See merge request !1416

Refer to Apache templates in 8.0 update guide

[ci skip]

See merge request !1426

Closes https://github.com/gitlabhq/gitlabhq/issues/9657

Remove CI dashboard

With CI status integrated at GitLab projects page there is no reason to keep it
anymore.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Part of #2594 

See merge request !1422

With CI status integrated at GitLab projects page there is no reason to keep it
anymore.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Show CI status on Your projects page and Starred projects page
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Part of #2594 

Screenshot: 

![Screenshot_2015-09-24_13.42.52](https://gitlab.com/gitlab-org/gitlab-ce/uploads/0516ea02b72457a431bd72d3f6619dfe/Screenshot_2015-09-24_13.42.52.png)


See merge request !1420

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

Use standard Markdown font in Markdown preview instead of fixed-width font

Closes #2585

See merge request !1414

Build status on commit page

Screenshot:

![Screenshot_2015-09-24_11.29.54](https://gitlab.com/gitlab-org/gitlab-ce/uploads/49d1b9dc60d328dceaf771b5e44726ca/Screenshot_2015-09-24_11.29.54.png)

Part of #2594 

See merge request !1418