Disconnect clients sending unknown commands
Disconnect clients sending unknown commands

Change-Id: Ifc9af146ae1a53da2c3ee694a4edef0df45fa6d7
Reviewed-on: http://review.couchbase.org/28874
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

couchbase/memcached,owendCB/memcached,couchbase/memcached,cloudrain21/memcached-1,owendCB/memcached,cloudrain21/memcached-1,daverigby/kv_engine,cloudrain21/memcached-1,mrkwse/memcached,jimwwalker/memcached,daverigby/memcached,mrkwse/memcached,mrkwse/memcached,daverigby/memcached,daverigby/memcached,couchbase/memcached,daverigby/memcached,jimwwalker/memcached,owendCB/memcached,daverigby/kv_engine,couchbase/memcached,cloudrain21/memcached-1,owendCB/memcached,daverigby/kv_engine,daverigby/kv_engine,mrkwse/memcached,jimwwalker/memcached