CSS: don't display empty () if upload size is empty
Fix #1004 "With PDF template, and barcode enabled, PDF generation fails"

- solved by setting the font encoding based on the font type
- also minor: just pass boolean for `embedded` value
Fix #1007 "PDF: font pitch and size are incorrectly updated in group"
PDF template: better align barcode
Comments
Update errorified, see:

- https://github.com/orbeon/errorified/commit/7479c4acf485573142eaaca2f21cee3b1e202ded
- https://github.com/orbeon/errorified/commit/23813d99339fea6f6ece16619b4e16ec83367e23
Fix incorrect ids (part of #849)