Pycups

* cups.Connection getClasses() handles IPP_NOT_FOUND
* PYCUPS_DEBUG environment variable controls debugging output

* cups.Connection.addPrinterOptionDefault() now supports lists and tuples
* cups.Connection.getPrinterAttributes() now handles multi-valued default
options as lists
* cups.IPP_FINISHINGS_* constants
* cups.Connection getPrinters() handles IPP_NOT_FOUND

* cups.Connection.adminGetServerSettings()
* cups.Connection.adminSetServerSettings()
* cups.CUPS_SERVER_* string constants

* threading support
* cups.Dest type
* cups.Connection.addPrinterOptionDefault()
* cups.Connection.deletePrinterOptionDefault()
* cups.Connection.getDests()

* cups.Attribute object
* cups.PPD.attributes
* cups.PPD.findAttr()
* cups.PPD.findNextAttr()

* cups.Connection.setPrinterShared() now handles classes
* cups.Connection.printTestPage()
* cups.Connection.getPPDs() includes ppd-make attribute
* cups.IPP_MAX_NAME