[REL-39]New definitions of AckRequested and Binding Pattern elements

Attached is the proposal for new definitions for AckRequested, ReplyTo,
 and RMReplyPattern.

 This was Tom's AI from last con. call. Since he was on vacation, he has
 requested me to forward it to the group. Most of the work was done by
 Tom itself, with contributions from Scott, Iwasa and myself.

 -Sunil