[e2e] Updated E2E list advisory group

[Joe Touch]

Hi, all,

The E2E list includes an advisory group who is provides oversight to the 
list, as noted here:
http://www.postel.org/e2e.htm

Craig Partridge has concluded his term as a member of this group, 
helping establish this list as free-standing upon the conclusion of the 
IRTF E2E RG.

Lachlan Andrew has accepted our invitation to join the group, which also 
includes Henning Schulzrinne and Scott Brim.

Please join me in thanking Craig for his service, and welcoming Lachlan.

Thanks, all,

Joe (as E2E list admin)