Update jquery.form to 2.18 in order to fix compatibility issues with jQuery 1.3, in particular COUCHDB-211.
Update jquery.form to 2.18 in order to fix compatibility issues with jQuery 1.3, in particular COUCHDB-211.

git-svn-id: c1f8a8ec0b3bb2e99ab3413722f81f687760e79c@734953 13f79535-47bb-0310-9956-ffa450edef68

apache/couchdb-futon,apache/couchdb-futon