mboxir v1.01 (20051223)
-----------------------
- The PJL addition and filtering of the printjob has been made into
a function called filterPrint.

- Now adds a nicely formatted job title into the printer mailbox, in
the form of "username: title" instead of whatever.

- Some cleanup of extraneous code leftover from earlier backends
from which this is derived.


mboxir v1.00 (20051221)
-----------------------
- Quick and dirty, roughly based on accsnmp backend.

- Some enhancements based off of Till Kamppeter's beh backend,
most notably: using the device URI for passing arguments, the more
elegant handling of the device URI generally, and actually
using the CUPS tempdir to spool temp files.