Chair change

Brian requested me to relieve himself of his duties as multi6 co-chair
in order to free up time for his new role as IETF chair.

We have agreed that he will step down and that Kurtis will help to
wrap up the working group and shepherd the remaining documents through
the IESG (for your information: the ops&mgmt area is now using the proto
procedure in all working groups).

I would like to thank Brian for his contribution to this important
piece of work. Thanks!

David Kessens
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