Adding enclosure tag (RSS 2.0 specification) see https://github.com/rmarquoi/jFeed/commit/84127009d86c28d101674785c71e71012e85f6f8
added "Support to full text feeds" see https://github.com/jfhovinne/jFeed/pull/14
added "jQuery conflict fix" https://github.com/jfhovinne/jFeed/pull/11