Document server packets
Document server packets

Change-Id: I1ad06b7c0b6865159be5d304a2b3cae8796709ac
Reviewed-on: http://review.couchbase.org/100708
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine