Progress report

Printers preferences application:
- job list view implemented (displays print job of a printer;
 allows to restart and cancel a print job).
- printer item updates status of pending jobs.
Besides of clean up / bug fixes and adding a network printer is not
implemented the Printers app. is completed.

Print Server:
- configuration windows shows some information about the
page format and job setup.

Internal changes: print server and Printers prefs. use node monitoring
for added/removed printers and added/removed/status changed print jobs.

TODO
1. Implement adding a network printer as soon as someone can provide
the necessary information how to do that.
2. Implement BPrintJob until the end of the year.
3. Clean up/bug fixes.

- Michael