QTextDocument::printer() does not translate formfeed character

Neither \f nor \u000C are respected as formfeed in QTextBrowser, especially with print(). This is incredibly easy to test in a VM with no printers defined so printing defaults to PDF file. Since nobody worked on this in version 4.7 attached is a completely self contained project. It even fills in the text for you. The only effort required to verify this bug is unzip the file, build the project, click print, then doubleclick on the PDF wherever you saved it.