Changelog:
==========
Reduce overhead to handle queries and responses (#1184) (81126b7)
Speed up answering incoming questions (#1186) (8f37665)
Optimize construction of outgoing dns records (#1182) (fc0341f)
Reduce overhead to enumerate ip addresses in ServiceInfo (#1181) (6a85cbf)
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
