This includes priorities and candidate identifier and the renaming of the
streamhost element to candidate. The candidate selection was updated to the use
of priorities and it is now required for both clients to send a candidate-used
or candidate-error information. Due to incompatibilities to previous version
the namespace changed to urn:xmpp:jingle:transports:s5b:1.
git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@3320 4b5297f7-1745-476d-ba37-a9c6900126ab