Comment 6 for bug 1339190

Lightly squashed branch w/ a number of multiplex additions and repairs pushed to:

http://git.evergreen-ils.org/?p=working/SIPServer.git;a=shortlog;h=refs/heads/collab/berick/sip2-support-multiplex-personality-squash1

It contains sign-off's for all of the commits which are not mine.

Beware it also contains the two commits from bug #1338761 (Relais extensions), since they were tested together and extracting them was getting messy. I suggest merging the Relias work before (or along with) this code.