Don't set the default account to the BonjourAccount if there is no support for it

Ignore-this: 6691c81de63c7081a2f90b9cb2aaba91

darcs-hash:20100629153954-56b4d-05f3d5b79eb6c8404518060a0b63650dfcc5e9ed
Increased version for python-application dependency

Ignore-this: 55194d386be02e17c9db535375f1be0

darcs-hash:20100630232846-58252-3a5ffaa5e89081ee7144adf9cd19768f75ba38ac