Modify GitLab to work with gitlab-shell 2.0

Related to #1516

See merge request !1057

'all' is not a valid username

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>

gitlab->GitLab

remove unnecessary chmod

[Documentation] simplify 6.0 to 7.2 upgrade guide

`lib/support/init.d/gitlab` was set as executable in the repo as of the
6.1 release so chmod is not needed after that. See
https://github.com/gitlabhq/gitlabhq/pull/7586/files#r16885445.

API: Filter issues by state

While working on [laboard](https://gitlab.com/jubianchi/laboard) I had some issues with the API : I was not able to filter issues by state so I had to write some logic to do it on my side.

I think it will be useful to have this feature supported by the Gitlab API, moreover, the MR API already provides such filter capabilities.

I added the filtering logic on `/issues` and `/projects/:id/issues`.

The commits are not squashed but I'll do it once everything seems ok to you.

See merge request !168

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

Ensure Oath supports providers without email response

See merge request !1054

Comment and close

Fixes #1240

See merge request !1055

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

This fixes #1541

Show milestone percentage in detail page, fixes #485

#### What does this MR do?

This MR adds the percentage count also to the milestone detail page.

##### Why was this MR needed?

Currently, this is only shown in the overview list.

##### What are the relevant issue numbers?

#485

###### Screenshots

![Screenshot 2014-08-17 21.14.27](https://gitlab.com/uploads/razer6/gitlab-ce/27e6f20bf2/Screenshot_2014-08-17_21.14.27.png)

See merge request !170

Added Spinach tests for search issues by issue-description

Added Spinach tests for 'search issues by description' feature which was added to Changelog 7.1 for feature "Filter by description on Issues#index page"

See merge request !172

Removed redundant spans

Moved padding from li to a in dashboard groups / projects listing

Remove duplicated setupNoteForm method

Update redcarpet gem

Awesome keyboard shortcuts for GitLab

[Documentation] add prepare for update details to 5.1 to 6.0 guide

Modify empty project instructions to use double quotes for commit mesage

Fixes http://feedback.gitlab.com/forums/176466-general/suggestions/6006904-modify-instruction-to-use-double-quotes-for-windo

See merge request !179

helps detect and correct issues that may occur during upgrade before
they have already occurred. easier to address issues before you start
upgrade process.

http://feedback.gitlab.com/forums/176466-general/suggestions/6006904-modify-instruction-to-use-double-quotes-for-windo

Feature ldap tests

Move specs to proper places. Relates to #154

This is already mergeable, will continue in a new branch for additions & refactorings.

See merge request !1053

Avoid ldap.allow_username_or_email_login issues

See merge request !1016

make CI build faster