CKAN 1.4.1

Major: * Refactor Web interface to use logic layer rather than model objects directly. Forms now defined in navl schema and designed in HTML template. Forms use of Formalchemy is deprecated. (#1078)

Minor: * Links in user-supplied text made less attractive to spammers (nofollow) #1181 * Package change notifications - remove duplicates (#1149) * Metadata dump linked to (#1169) * Refactor authorization code to be common across Package, Group and Authorization Group (#1074)

Bug fixes * Duplicate authorization roles were difficult to delete (#1083)