Sketch of line spacing conversion
Move JaxbCustomXmlDataStoragePart back into the opendope package.  Too late to have moved it now.
Implement java:org.docx4j.convert.out.Converter.getFootnote
Workaround for org.apache.fop.fo.ValidationException: "fo:flow"
is missing child elements. Required content model: marker*
(%block;)+ which occurs if a docx contains a single p containing a
sectPr, or consecutive p each containing sectPr.
FOP configuration changed after FOP 1.1.  Our FOP configuration now
supports FOP before or after 1.1. This means you can use FOP 1.1 to get
around FOP's page-break-before bug.