Merge remote-tracking branch 'origin/master'

Lock mutex only once needed – fixes brutella#51

Prefix info log messages with "dnssd:"

Merge remote-tracking branch 'origin/master'

Merge pull request brutella#43 from lukasmalkmus/lukasmalkmus/conn-wr…

…ite-deadline

feat(probe): set write deadline on outgoing connection

Update dependencies

Update readme

Merge pull request brutella#40 from decent-e/feature/extend-request-i…

…nterfaces

Extend Request interfaces for relay

Fix closure issues as mentioned in brutella/hap#4

Reannounce txt records on all service network interfaces brutella#16