Crowd integration

https://dev.gitlab.org/gitlab/gitlabhq/issues/2217

See merge request !1228

Re-annotate models

See merge request !1253

Fix URL construction for merge requests, issues, notes, and commits for relative URL config

This MR fixes the constructor of URL links for systems using relative URLs in the application config. The `host` parameter was used improperly, supplying an extra path (e.g. https://mydomain.com/gitlab) and unnecessary scheme. We should be able to default to the URL options set in `8_default_url_options.rb` file.

Closes https://github.com/gitlabhq/gitlabhq/issues/9605

See merge request !1250

Fix broken Wiki Page History

This MR fixes the broken Page History on the Wiki pages. It turns out `WikiHelper` did not allow users to view different versions due to its omitting of query string parameters, which was necessary to specify different `version_id` parameters. Instead of this hacky approach, use manually-specified wildcard routes that match the ID field properly for slashes.

Closes #2104

Closes #1751

Closes #1592

Closes https://github.com/gitlabhq/gitlabhq/issues/9399

See merge request !1232

Remove style attribute from textarea during ZenMode activation

Closes internal https://dev.gitlab.org/gitlab/gitlabhq/issues/2466

Closes https://github.com/gitlabhq/gitlabhq/issues/8963

See merge request !1248

Add syntax highlight scheme to notes rendered client-side

See merge request !1249

Upgrade Redis requirement check to 2.4.0 per https://github.com/mperham/sidekiq/pull/957

Closes #2222

Closes #2445

See merge request !1251

Use File.join to prevent extra slash in help message from appearing. Before:

```
Try fixing it:
sudo -u git -H /opt/gitlab/embedded/service/gitlab-shell//bin/create-hooks
```

See merge request !1252

```
Try fixing it:
sudo -u git -H /opt/gitlab/embedded/service/gitlab-shell//bin/create-hooks
```

Closes #2222

Closes #2445

Closes https://github.com/gitlabhq/gitlabhq/issues/9605

Closes internal https://dev.gitlab.org/gitlab/gitlabhq/issues/2466

Style project home page

Also make header more compact

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

See merge request !1246

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

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

Add image content-type header in raw download

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

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

See merge request !1245

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>

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

Fix `rake services:doc` generation

From: https://github.com/gitlabhq/gitlabhq/pull/9604#issuecomment-137539926

See merge request !1243

Add Content-Type header to fix a bug which IE can't show image in
markdown when the image is from raw.

	modified:   CHANGELOG
	modified:   app/controllers/projects/raw_controller.rb
	modified:   spec/controllers/projects/raw_controller_spec.rb

[ci skip]

Ui improvements

* show page context title instead of `Dashboard` keyword
* fix event feed overflow
* remove annoying tooltips where its not needed
* fix tests broken in previous mr

See merge request !1242

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

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