Add support for XEP-0174 (XMPP standard) #183
Description
For over a decade, XMPP clients can communicate over LAN and "mesh" by publishing their presence using Avahi (also referred to as "Zeroconf"); see XEP-0174: Serverless Messaging.
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.
Clients with XEP-0174 support: Gajim * and Kopete, and more...
* Support to Gajim will be restored very soon