CKAN 2.1.2

Bug fixes: * Fix context for group/about setup_template_variables (#1433) * Call setup_template_variables in group/org read, about and bulk_process (#1281) * Remove repeated sort code in package_search (#1461) * Ensure that check_access is called on activity_create (#1421) * Fix visibility validator (#1188) * Remove p.toolkit.auth_allow_anonymous_access as it is not available on 2.1.x (#1373) * Add organization_revision_list to avoid exception on org history page (#1359) * Fix activity and about organization pages (#1298) * Show 404 instead of login page on user not found (#1068) * Don’t show Add Dataset button on org pages unless authorized (#1348) * Fix datastore_search_sql authorization function (#1373) * Fix extras deletion (#1449) * Better word breaking on long words (#1398) * Fix activity and about organization pages (#1298) * Remove limit of number of arguments passed to user add command. * Fix related_list logic function (#1384) * Avoid UnicodeEncodeError on feeds when params contains non ascii characters