Note, this requires that the printer driver internally supports multiple copies and collation. Otherwise the function will not be available to the user.
-If printing with multipage mode on, user will be prompted with the Windows printer dialog with each print job. If multipage mode is off, user will be prompted every time printer is reset to avoid being prompted for every page.
-Improved error handling when user clicks "Cancel" on the print dialog. An error dialog is shown and the Virtual Imagewriter falls back to bitmap output.
Switch emulated Imagewriter to using page units equivalent to Postscript points (1/72th of an inch) vs 1/10th of an inch. This is to aid in adding additional paper size support in the future.
