Add Git hook to validate maximum file size.

Addresses #286.

See merge request !413

Add API support for adding and removing LDAP group links

See merge request !4

CE to EE

See merge request !414

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

Conflicts:
	app/services/files/base_service.rb
	app/services/files/create_service.rb
	app/services/files/delete_service.rb
	app/services/files/update_service.rb
	doc/workflow/README.md

importing documents renewed

Single commit of !1813

cc @karen

See merge request !1844

update reference to deprecated repo and update guide

See merge request !412

Doc: Added FreeOTP to 2FA

I have just added a note about a free alternative to Google Authenticator to the documentation of your two factor authentication.

See merge request !777

Remove line under project description

## Before

![Screenshot_2015-06-05_19.44.39](https://gitlab.com/gitlab-org/gitlab-ce/uploads/e80e03a15ff32de489e61662674f8b70/Screenshot_2015-06-05_19.44.39.png)

## After

![Screenshot_2015-06-05_19.44.19](https://gitlab.com/gitlab-org/gitlab-ce/uploads/d4e2eb43802dbeee397fb6bc051b82b2/Screenshot_2015-06-05_19.44.19.png)

See merge request !776

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

Fix css alignment in header. Use scss variable
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !775

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

CE to EE

@rspeicher @douwe reference extraction / markdown parsing was refactored and improved again and again. And every time I merge CE into EE I has conflicts in this code. Can we have SAME code  CE and EE responsible for reference extraction?

Problem files:

* lib/gitlab/markdown/external_issue_reference_filter.rb
* lib/gitlab/reference_extractor.rb

See merge request !411

Refactor web editor

* fix problem with editing non-master branch
* before commit make sure branch exists
* dont allow user change file in one branch and commit to another existing branch
* remove a lot of code duplication
* remove outdated statellite errors
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Fixes #1761

See merge request !773

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

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

Prevent LDAP group sync from removing a group's last owner

As discussed with Patricio in support request 3151

When setting up LDAP group sync, users can easily lock themselves out of their own group (cf. http://doc.gitlab.com/ee/integration/ldap.html#locking-yourself-out-of-your-own-group). The group may be left without any owner and requires intervention of the GitLab Administrators - a significant burden for a large deployment. In order to avoid this situation, this patch prevents the LDAP group sync from removing the last owner of a group, in the same way GitLab does not allow removing the last owner of a group via the Members page. This "last owner" is left in place until a new owner is nominated, the next sync after that will remove him/her.

See merge request !7

Show warning when a comment will add 10 or more people to the discussion.

Addresses internal issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2054

New issue:

![Screen_Shot_2015-06-02_at_14.48.46](https://gitlab.com/gitlab-org/gitlab-ce/uploads/6771ff8748b9b548a9f0f32a5a8b9bb1/Screen_Shot_2015-06-02_at_14.48.46.png)

New comment:

![Screen_Shot_2015-06-02_at_14.48.51](https://gitlab.com/gitlab-org/gitlab-ce/uploads/25ec5f06490e1e6b36e453e055a7b403/Screen_Shot_2015-06-02_at_14.48.51.png)

See merge request !754

Add info about WIP merge requests to docs.

Addresses internal issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2078.

See merge request !770

Fix timeout when rendering file with thousands of lines.

Addresses internal issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2354.

See merge request !771

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

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

Try to explain Unicorn and unicorn-worker-killer

See merge request !1842

* fix problem with editing non-master branch
* before commit make sure branch exists
* dont allow user change file in one branch and commit to another existing branch
* remove a lot of code duplication
* remove outdated statellite errors
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>