When a user is not logged in, we want to show the `New Issue` link so
he gets directed to the login flow first.

When a project is archived, we never want to show the link.

This prevents performing the requests, and disables all emoji reaction buttons

This could only be possible for users that can create merge requests
within a project.

So they need to be a allowed to create a branch and create a merge request.

When a project is archived, don't show the button on the index page
of merge requests

So we can distinguish between the permissions on the source and the
target project.

- `create_merge_request_from` indicates a user can create a merge
  request with the project as a source_project
- `create_merge_request_in` indicates a user can create a merge
  request with the project as a target_project

This prevents creating merge requests targeting archived projects.

This could happen when a project was already forked, but then the
source was archived.

That way the ProjectPolicy class can be extended with this module
before we prepend the EE::ProjectPolicy. This makes the classmethods
available for rules defined in the EE::ProjectPolicy.

Rename delete_protected_branch ability to push_to_delete_protected_branch to prevent confusion with destroy_protected_branch

CE upstream - 2018-04-10 12:26 UTC

See merge request gitlab-org/gitlab-ee!5310

Add a note about not supporting recursive includes on Ci YAML documentation

See merge request gitlab-org/gitlab-ee!5282

explain auto-devops better

See merge request gitlab-org/gitlab-ee!5290

[ci skip]

CE upstream - 2018-04-10 04:58 UTC

See merge request gitlab-org/gitlab-ee!5305

Revert "Merge branch 'improve-jobs-queuing-time-metric' into 'master'"

See merge request gitlab-org/gitlab-ce!18276

This reverts merge request !17730

Replace vue resource with axios for pipelines table

See merge request gitlab-org/gitlab-ce!18264

Document process for new Git features

See merge request gitlab-org/gitlab-ce!18230

Use Gitaly 0.95.0

See merge request gitlab-org/gitlab-ce!18256

Fix conflicts for  app/assets/javascripts/vue_merge_request_widget/components/mr_widget_pipeline.vue

Port Ruby 2.3.7 changes to EE

See merge request gitlab-org/gitlab-ee!5304

Change all in-product trial references from Premium/EE to Ultimate

See merge request gitlab-org/gitlab-ee!5258