OTHER-127: Point sponsor link to MetaBrainz
MBS-3856: Revert MBS-1052 "Amazon should lookup cover art by barcode too"

This partly reverts 609f1cb and ea96414.
MBS-3856: Add ./admin/RemoveBarcodeCoverArtUrls.pl.

This script removes all cover art URLs from releases that were fetched
using barcode.
Merge branch 'master' into other-127-sponsor-page

* master: (89 commits)
  Commiting local changes to ShowDBDefs and default DBDefs from astro
  MBS-5432 temporary fix: revert cover art types i18n where it was causing breakage
  HTML5 Test still had a lurking DBDefs::, changed to ->
  MBS-3308, always display "Open edits" link.
  MBS-5610, always display "Set cover art" link, remove "Remove release group" link.
  MBS-5607, don't crash when serializing a release group without a primary type for json /ws/2.
  MBS-5612, revert the changes to load_for_release_groups in the previous commit, the previous sort behaviour was correct.
  MBS-5610, Move "Set cover art" link to the correct section.
  MBS-5616, move "set cover art" from label to h1.
  MBS-5622: pass $c->req->secure to Captcha::reCAPTCHA->get_html to ensure correct API endpoint is used
  Update translatios from transifex.
  MBS-5620: Use 54px image on profile pages.
  MBS-5620: Fix ampersand encoding in gravatar URLs.
  MBS-5620: Made it actually work.
  MBS-5620: Implementing size option for Gravatar macro.
  MBS-5620: Add "&s=12" to Gravatar URLs.
  MBS-4108: actually sort the list *at all*
  MBS-4108: reverse sort in order to correctly preference same-language wikipedia links
  Update .pot files and run fixup script on .po files checked-in
  Update translations from transifex.
  ...
MBS-5663: validDate should handle leap years
MBS-3856: Fix ./admin/RemoveBarcodeCoverArtUrls.pl (fixup 9737724).
MBS-3856: Also clean releases where barcode has been removed (fixup 9737724).
Add release-country predicate to edit search
MBS-5577: Relationship Editor displays "vocal vocals"
MBS-5288, normalize pages xml response in Data::WikiDocIndex::get_wiki_versions.
MBS-5717: Only include ": {title}" when there is one + i18n.
MBS-5716: Add space between new and old in Reorder Medium edits.
MBS-5717: Fix misplaced parenthesis.
MBS-5288, use ForceArray when calling XMLin instead of normalizing the result later on.
MBS-5723: Allow sorting collections by any column
Combine separate l() strings together in reorder_mediums.tt.
Update CDStub::Browse test for the new year.
Merge branch 'release-country-edit-search' into beta

* release-country-edit-search:
  Add release-country predicate to edit search
Merge branch 'master' into beta
Merge branch 'mbs-5288' into beta

* mbs-5288:
  MBS-5288, use ForceArray when calling XMLin instead of normalizing the result later on.
  MBS-5288, normalize pages xml response in Data::WikiDocIndex::get_wiki_versions.