Merge pull request #77 from einhverfr/1.4

1.4
Options now display, but batches don't print
basic code working, except for errors
Much progress, now to an error to select ps or pdf
now prints first voucher in list, but to screen.  So more minor issues to fix as we go forward
fixing id not found for printed document
Fixing batch printing, now working
Merge pull request #527 from einhverfr/1.4-batchprint

New batch printing interface