6.9.0 EE packages

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Ci dev info

Fix LDAP email upper case bug

Conflicts:
	VERSION
	doc/install/installation.md
	doc/integration/README.md
	doc/integration/external-issue-tracker.md
	lib/gitlab/markdown.rb
	spec/lib/gitlab/ldap/ldap_access_spec.rb

Dev setup on metal

Cloud com

Deploy key in multiple projects

Add doc on adding a deploy key easily to multiple projects through the API.

Small ui improvements

* fix ugly errors block when admin save invalid user
* fix ugly errors when you tries to save invalid wiki page

Improve Milestome UI

Milestone UI header was different from Issue/MR pages but use same UI elements.
This MR fixes it so UI looks same for issue/mr/milestone

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

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

Fix install guide

Fix gitlab setup. DB setup must go after gitlab-shell setup. Because in seeds we need `/home/git/repositories` to exist

Rebuild Postgres indexes after a MySQL conversion

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

Ubuntu 14 needs recent ruby patch

Ruby version updated so it doesn't have the readline bug https://www.ruby-lang.org/en/news/2014/05/09/ruby-2-0-0-p481-is-released/.

Added Cloud 66 to third party one-click installers