Client scripts should have a default queue

[jhamrick]

There should be a default gutenbach queue for the clients, e.g.:

gbr *.mp3

Should print to whatever the default queue is (say, sipbmp3). If someone wants to use a different queue, they can specify it:

gbr -Ppikamp3 *.mp3

There should be a utility in gutenbach-client-config to specify what the default printer is, e.g.:

gutenbach-client-config -D sipbmp3

[broglek]

Ticket fixed in commit [7cdd65d046c9006576119fc80e12f3d5a5a37478].