MBS-6893: Add "Rockens Danmarkskort" per STYLE-258.
Merge branch 'beta' into MBS-6893-rockens-danmarkskort

Resolving merge conflicts from pull request #540 (commit 489eb7d).

Conflicts:
	lib/MusicBrainz/Server/Data/URL.pm
	root/static/scripts/edit/MB/Control/URLCleanup.js
Merge remote-tracking branch 'freso/MBS-6893-rockens-danmarkskort' into beta