- concerns
- dashboard
- groups
- import

Bitbucket Server places personal projects in a namespace called
`~username`. This change allows those projects and also strips
them from the GitLab namespace.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/53419

The importer would display a 500 error page if you attempted to import
using a non-existent DNS entry. This commit rescues known network issues
and consolidates them into
BitbucketServer::Connection::ConnectionError`.  The previous error
handling in the paginator doesn't work because it returns a lazy
collection.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/56154

To prevent delays in loading the page and reduce memory usage, limit the
number of projects shown at 25 per page.

Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/50021

This whitelists all existing offenses for the various CodeReuse cops, of
which most are triggered by the CodeReuse/ActiveRecord cop.