Upstream backport.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Changes:
Makefile now downloads files from Github instead of SourceForge.
Changed URL, because they decided to leave SourceForge and use Github.
Added dependency libavahi-client, otherwise it doesn't build.
Dropped unnecessary patches, because both were upstreamed.
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

Monitor adapters (zeroconf, enet, usb and w1) don't have the reset
routine, causing null pointer dereference in BUS_reset function.

This patch has been submitted upstream:
https://sourceforge.net/p/owfs/bugs/67/

Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>

This fixes the endless loop waiting for w1 subsystem connector status
message.

According to the 8a0427d kernel commit, the last (status) netlink msg
should have ack=seq, whereas all the others messages should have ack=seq+1.

This patch has been submitted upstream: https://sourceforge.net/p/owfs/bugs/66/.

For independent problem report, see this thread:
https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=98772

Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>