Improving graphs: add new commits graphs page

This MR adds new page to graphs sections with commits statistic

![Screenshot 2014-09-26 20.32.01](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/61fd84c4d6/Screenshot_2014-09-26_20.32.01.png)

See merge request !1124

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

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

Remove type submit from button_tag since default.

Replace empty? || nil? with blank?.

Typo indiciated -> indicated.

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

Refactor graphs

This is first step of refactoring graphs. It includes removing all outdated and non-working stuff.

Related to #1590

See merge request !1123

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

* remove commits stats page (will be replaced by graphs)
* remove additions/deletions from graph because of bad performance
* keep graph logic in gitlab
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

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

Fix branch removal

Fix exception on post-receive worker when remove branch

See merge request !1122

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

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

Remove unnecessary page. from tests.

Update application.js.coffee

The require jquery.turbolinks should be before the require turbolinks.

https://github.com/rails/turbolinks => "Add the gem to your project, then add the following line to your JavaScript manifest file, after jquery.js but before turbolinks.js"

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>

Imrpove filter dropdown

Fixes #1617

See merge request !1120

Improve search autocomplete

Sort search autocomplete projects by stars count so most popular go first.

So when you search for popular project - first result will be this project instead of other forks

Fixes #1404

See merge request !1121

Fix spelling error on profile page

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>

Small documentation update, add unixsocketperm

If you run gitlab as user ``git`` while redis runs as user ``redis`` and you add git to ``redis`` group, you'll need to set ``unixsocketperm = 0775`` to grant write access to group.

See merge request !192

Remove ununsed CONTRIBUTING link on edit MR form.

Improve flash message

* dont fadeout so user can read
* show inside content block so user can notice it

See merge request !1119