Consider array params on rendering MR list on dashboard

See merge request gitlab-org/gitlab-ce!26623

(cherry picked from commit 7926384f)

b3f5413a Consider array params on rendering MR list on dashboard

https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8731

This reverts commit 427c1e72, reversing
changes made to 5aac64a7.

Show a dismissable callout on a users dashboard for a free trial of
the GitLab.com Gold plan. Hide the callout from users who have
dismissed the callout, are already on a trial or are already on the
gold plan

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

Signed-off-by: Rémy Coutable <remy@rymai.me>

Replaces all the explicit include metadata syntax in the specs (tag:
true) into the implicit one (:tag).
Added a cop to prevent future errors and handle autocorrection.

The helper creates a fork of a project with all provided attributes,
but skipping the creation of the repository on disk.

'New issue'/'New merge request' dropdowns should show only projects with issues/merge requests feature enabled