Block 'disabled' AD users over SSH

The existing SSH access check for LDAP users ignored the ActiveDirectory 'disabled' flag.

Check the bit for disabled Active Directory users. The filter is based
on http://ctogonewild.com/2009/09/03/bitmask-searches-in-ldap/ .

Update grit version

Pullreview

Add an example webhook receiver

fix ctrl+enter note send

use argument e instead of event

Gzip assets warning for relative urls

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

Green theme

Because we have 3 dark themes with similar colours. So it makes sense to replace one with something colourful. So why not green? :)

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

Improve jira linking

Ported from EE

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>

Conflicts:
	CHANGELOG-EE

Improve violet theme

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

Merge Request Labels

Accept merge request API

This MR adds new endpoint `PUT /projects/:id/merge_request/:merge_request_id/merge`. After this change you can merge branches using API.

Fixes internal issue #1166

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

Added email threading for update emails on issues and merge requests

Temporary fix for #4305: Cant preview attached png images on notes; attachment.secure_url returns an url which is accessible

Commit message textareas have 72 char mark line.