#1026118 by balleyne: Removed hard-coded CC0 details, adjusted support for CC0 and the Public Domain Mark now that they're available through the API, added PDM images and license text, adjusted CC0 text based on API text.

#530372 creativecommons_view was setting $node->content['body']['#value'] .= $output;  Should have been $node->body .= $output;

moved if (module_exists('search')) { to only apply to search settings.  If seach wasn't enabled, the creativecommons_rdf and creativecommons_node_license_redundant_display could not be set

added icon, small and large buttons to address #865190.  Haven't updated any of the module code to display these.

feature #669646 by darrick, balleyne: Accepted patch to views filter to filter by license type, instead of by license uri.