Create gitlab internal issue service

Part of #1908

Create a default gitlab issue tracker service which will replace having issue tracker fields for project.

See merge request !1449

Update semantic-ui-sass to 1.8

Saner LDAP defaults

I have the impression that most people use LDAP servers listening
on port 389, without encryption. If we make that the default we
give people a smoother ride setting up GitLab.

See merge request !1446

#1019: Broadcast message does not show up properly with new UI

With the new UI, the broadcast message is the first level child element of the body tag and then render full width without respecting the width of the left sidebar. This makes the message goes under the left sidebar in smaller screen.

This commit fixes the issue by moving the message element into the "page-with-sidebar" div so it will always render together with the main content area with same look as before. The rendering for the search, login and other view without left sidebar remains untouched.

Releases: master, 7-7-stable

Fixes: #1019

See merge request !315

With the new UI, the broadcast message is the first level child element
of the body tag and then render full width without respecting the width
of the left sidebar. This makes the message goes under the left sidebar
in smaller screen.

This commit fixes the issue by moving the message element into the
"page-with-sidebar" div so it will always render together with the main
content area with same look as before. The rendering for the search,
login and other view without left sidebar remains untouched.

Releases: master, 7-7-stable
Fixes: #1019

Add tests for creating bare repo and first file in UI

Part of #1930

See merge request !1444

Move external issue tracker away from yml config

See merge request !1442

Handle errors on API when a project does not have a repository

Remember the project default tab for 30 days

Added support for firing system hooks on group create/destroy and adding...

Add titles to all nav links

See merge request !313

Active users and logged in users

/cc @marc @haydn @dzaporozhets

See merge request !1443

Don't require omniauth to enable github importer

I noticed the github importer is only enabled when omniauth authentication is also enabled. That isn't actually necessary -- just the oauth keys from GitHub are required to be configured.

The fix for this is very simple.

See merge request !316

Added tests and updated docs. Also adding 'user_id' field in the hooks for adding/removing user from team.

Improve web editor

* focus on web editor
* Make editor looks same for new and edit file
* Refactor editor JS
* Improved satellite logic for new files

See merge request !1441

Conflicts:
	app/models/project.rb
	spec/models/project_spec.rb