Release/7 8 4

See merge request !1678

Fix importers with OCC

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/1180

Using validates_uniqueness_of does not guarantee the absence of duplicate record insertions. When users click button "import all" it will create duplicating group in database and data integrity will be broken.

http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#method-i-validates_uniqueness_of

I use optimistic concurrency control for handling this situation.

See merge request !1647

Conflicts:
	db/schema.rb

Remove placeholder methods to prevent calling methods rather than attributes.

Since we have https://dev.gitlab.org/gitlab/gitlabhq/blob/7-8-stable/app/models/service.rb#L79 makes no sense to have methods as a placeholder.

See merge request !1676

Properly move over `issues_tracker_id` from old custom issue tracker URLs.

Addresses https://gitlab.com/gitlab-org/gitlab-ce/issues/1124.

cc @marin Regression in 7.8.0.

See merge request !1670

Release 7.8.3

Bump gitlab_git to fix 500 with annotated tags w/o message

Should fix https://gitlab.com/gitlab-org/gitlab-ce/issues/1181

See merge request !1666

Bump gitlab_git to fix 500 with annotated tags w/o message

Should fix https://gitlab.com/gitlab-org/gitlab-ce/issues/1181

See merge request !1640

Conflicts:
	Gemfile
	Gemfile.lock

WIP | Release/7 8 2

See merge request !1629

Fix import check for case sensetive namespaces

If you already have namespace `ABc` and you try to import project with namespace `abC` - import will fail with 422 error.

cc @valery

See merge request !1618

Don't leak information about private project existence via Git-over-SSH/HTTP.

Fixes #2040 and https://gitlab.com/gitlab-org/gitlab-ce/issues/343.

Both `Grack::Auth` (used by Git-over-HTTP) and `Api::Internal /allowed` (used by gitlab-shell/Git-over-SSH) now return a generic "Not Found" error when the project exists but the user doesn't have access to it.

See merge request !1578

Fix GitLab && Gitorious importers. Hide already imported projects

Fixes #2060

See merge request !1594

Correctly set default projects limit for new users.

See #2014.

Note that the projects limit still isn't retroactively applied to existing users (probably as intended)

See merge request !1547

Prevent another migration from failing due to indirect use of model columns not yet created

See https://github.com/gitlabhq/gitlabhq/issues/8817#issuecomment-76007077

cc @marin

See merge request !1597

Update gitlab-shell version in installation and update documentation

installation was totally off compared to the update document. The update
document was slightly off (rake gitlab:check excpects 2.5.4 and not
2.5.3)

access

Bump gitlab-shell to 2.5.4

For #2042

See merge request !1584

Fix links to issues if instance is using relative urls.

Fix for https://github.com/gitlabhq/gitlabhq/issues/8767

See merge request !1574

Changes for 7.8 RC5

See merge request !1566

Change check to only swap static middleware when it's enabled.

Fixes problem with #1553.

cc @marin

See merge request !1565

Changes for 7.8.rc4

See merge request !1564