Build cbsasl

Change-Id: I15a14cf13f316323379f3a98767e329f10ea03ce
Reviewed-on: http://review.couchbase.org/28479
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Build memcached with cmake

Change-Id: I5d31bb93e2eb84537e4d4a596654440c0d4805b5