ICPs should be listed in a string serapared by space

TODO detect whether request comes from China and only then show ICP (?).

All repositories which has LICENCE file are failling (see log bellow).
We disabled it for now as it's not mandatory.

Completed 500 Internal Server Error in 10240ms (ActiveRecord: 124.9ms | Elasticsearch: 0.0ms | Allocations: 274932)

ActionView::Template::Error (4:Deadline Exceeded.):
 17:
 18: - if is_project_overview
 19: .project-buttons.gl-mb-3.js-show-on-project-root
 20: = render 'stat_anchor_list', anchors: @project.statistics_buttons(show_auto_devops_callout: show_auto_devops_callout), project_buttons: true
 21:
 22: #js-tree-list{ data: vue_file_list_data(project, ref) }
 23: - if can_edit_tree?

lib/gitlab/git/wraps_gitaly_errors.rb:13:in `rescue in wrapped_gitaly_errors'
lib/gitlab/git/wraps_gitaly_errors.rb:6:in `wrapped_gitaly_errors'
lib/gitlab/git/repository.rb:763:in `license_short_name'
app/models/repository.rb:622:in `license_key'
...

If MR has more than one commit, it's possible to do fast-forward merge when
the MR branch is rebased.

If there is only 1 commit is present in MR, apply patch buttun is enabled
allow to merge the MR in a single commit.

We show in small font size the same info that is shown on sign_in page:

    "GitLab Nexedi Edition", "About GitLab" and "About Nexedi"

This is good to have and hereby-introduced about-footer area will be
also used in the next patch for ICP too.

XXX placement of .about-footer to be near bottom is done not very
correctly.

= GitLab Community Edition + Nexedi patches

Include Merge description message in merge by default. User can disable description in merge message by clicking on `Don't include description in commit message`.

Drop the merge title which is "Merge branch SOURCE into TARGET" and only keep the MR title as commit message.

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