itools 0.12.1 released

Changes: Web - Message headers are case-insensitive. - Implement the parameter HTTP-Date as of specified in the RFC. - Fix the format of the "Date" header in the response. - Implement the headers "Last-Modified" and "If-Modified-Since". - Fix the HEAD method: don't return any entity, only the headers. CMS (a.k.a. ikaaro) - Fix metadata serialization for the workflow transitions. - Fix external edit, the lock/unlock operations were not persistent. -- J. David Ibáñez Itaapy <http://www.itaapy.com> Tel +33 (0)1 42 23 67 45 9 rue Darwin, 75018 Paris Fax +33 (0)1 53 28 27 88