Fix 502 error on new merge request page

When diff is huge we try to render it that cause 502 error often.
After this patch we apply soft limits to diffs. So if diff is huge - we doing show it

Fixes #1323

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

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

Conflicts:
	CHANGELOG

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

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

Check LDAP user filter during sign-in

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

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

Autolink in project/group description

Group:

![Screenshot 2014-06-12 22.58.07](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/b5a95eff8a/Screenshot_2014-06-12_22.58.07.png)

Project:

![Screenshot 2014-06-12 22.58.36](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/51e516fb41/Screenshot_2014-06-12_22.58.36.png)

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Fixes http://feedback.gitlab.com/forums/176466-general/suggestions/4110570-group-description-should-support-markdown

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

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

fix double check for all issues

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>

Ui improvements

Be more selective when killing stray Sidekiqs

Avoid the background_jobs script killing every process with 'sidekiq' in
its argument string (e.g. 'rake gitlab:sidekiq start') by also catching
the number (2) in 'sidekiq 2.14'.

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

Detect omnibus-gitlab in `rake gitlab:check`

Split commit logs loading

#### Before this MR

When visit files tab we have ajax call that loads all last commits for files inside directory.
Load time depends on amount of files in directory. So if directory has 100 files - you may need to wait up to 20 seconds to get last commits info of files. Still if you do navigation at this time the request still wait for processing taking workers busy. If several people try to navigate through big repository directories - you will see huge performance drop.

#### After this MR

Load last commits only for first 10 entries. It usually takes not more then a second (even for huge repos). If user still on the same page - do next ajax call and get 10 more entries. If user navigate to another directory - stop ajax calls for this directory. So for cases when you want navigate to nested directory - you don't have long-running ajax calls that takes workers and makes app unusable for other users

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Fixes #1229

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

Omnibus-gitlab does not use the init script.

Better support for huge repositories

This MR contains next improvements to GitLab:
* You can see repo commits count even if it is > 100k commits
* Prevent 500 for commit page for large repos
* Add notice about huge push over http to unicorn config
* File action in satellites uses default 30 seconds timeout instead of old 10 seconds one
* Show spinner when loading data for network graph

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

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

Use gitlab_git to get commit_count in repo. It allows get commits count for git repos with 100k+ commits
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>

Strip apostrophe from email generated username

Related to #1225
Fixes #1225

Bump gitlab git

Makes Commit#find method much faster on bigger repos.

Partly fixes #1306

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

Bump grit

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/222