[REVIEW: 3-5, 3-4] fdo#43932 setting paper tray from print dialog

[David Tardon]

Commit 6d4cca9c22c52b5a7742adc47ebf1a2930e29764 is an attempt to fix
fdo#43932 . The problem was that PrinterController always used default
tray, unless it was overriden by application-set one. Now it actually
uses the chosen one (which may not be the same the user selected,
because of of printer driver's override, e.g., failed constraint in PPD.
But that is another, unrelated, problem...)

It seems to work here on one of our office printers :-)

D.