The OBv2.0 specification includes a field "Criteria" for
BadgeClass. Until now, this field was filled using the
URL of the badge assertion, but that is causing some issues
in Badgr because it linked to the badge assertion of the
first user sending this badge to the Badgr backpack (so then,
the following users linked to the first user assertion page
too).
This patch adds a new page, badgeclass.php which will be
used from now to display any badge information which is
not related to any assertion (like happens with the criteria
in BadgeClass).
Apart from reorganising the information displayed in the external badges
page, this information has been moved to reuse the template created in
MDL-71937, to make it easier to modify and maintain.
Apart from reorganising the information displayed in the badges page,
this information has been moved to a template in order to make it
easier to modify and maintain.
