PAPPL 1.4.x Incompatibility - Options and State using the same filenames!

[michaelrsweet]

It has come to my attention that PAPPL 1.4's new option support conflicts with the historical state filenames for lprint (lprint.conf).

In order to separate configuration/state from options, PAPPL by default uses BASENAME.state for state and printer configuration and BASENAME.conf for server configuration (read-only). LPrint needs to migrate to the new file naming conventions and ideally should stop using its own system callback now that the default is fully functional.

[michaelrsweet]

Hopefully we won't run into too many cases where the lprint.conf filename would have been used. The new system callback follows PAPPL's method (which follows the corresponding platform standards...):

[master 648bc20] Update state filename to current PAPPL standard, rename old state filenames (Issue #129)