Set cccp timer for active server connections

Change-Id: Ibc66ec2fe5c68aed496214bf2df0f112a0e5522f
Reviewed-on: http://review.couchbase.org/34751
Reviewed-by: Mark Nunberg <mnunberg@haskalah.org>
Tested-by: Subhashni Balakrishnan <b.subhashni@gmail.com>