todo:
-* finish DBUS stuff:
- - allow NUL bytes in TXT records
-* add internal error codes
+* drop glib
+* allow srv port == 0
+* deal with no local interface
* release!
later:
* c++ support
* drop trailing dot on avahi_normalize_name()
* add entry_group::reset()
+* add internal error codes
+* finish DBUS stuff: allow NUL bytes in TXT records