CUPS 1.2.0 b1

I uploaded new development snapshot of CUPS 1.2 -- cupsys 1.1.99.b1.r4748 -- to experimental. This version has many interesting changes for fearless people.

• New debconf questions about port/listen and browsing
• IPv6
• Improved backends, especially lpd
• Reformed Web interface
• Etc... See /usr/share/doc/cupsys/CHANGES.txt.