Bug#711169: cups-daemon: ipp printer browsing support removed

[Till Kamppeter <till.kamppeter@gmail.com>]

Thank you very much for the bug report and the patch.

The hard switchover from IPP-only broadcasting to Bonjour-only
broadcasting on the transition from CUPS 1.5.x to 1.6.x is really bad.

cups-browsed is indeed the only solution to get Bonjour browsing to
conserve the configuration-less client feature in CUPS 1.6.x environment
and CUPS broadcasting/browsing to get compatibility between CUPS 1.5.x
and 1.6.x.

Your patch is a first step to inform users about the need of
cups-browsed. Suggestion to improve it: Explicitly mention that the
configuration settings have to be done in /etc/cups/cups-browsed.conf.

I am also thinking about letting cups-browsed at least listen to the old
IPP broadcasts ("BrowseRemoteProtocols cups"), so that new clients work
with old servers out of the box but the network does not get flooded
with broadcasts of an obsolete format by cups-browsed. WDYT?

   Till