2009-07-21 Jens Alfke Added -[MYBonjourRegistration updateTXTRecord]
2009-07-21 Jens Alfke Prevent crash if MYBonjourQuery is released during response handling
2009-07-20 Jens Alfke DNS NULL record support in MYBonjourRegistration. Minor fix to IPAddress init. Force 4-char indent in source files.