Associate structure tree elements directly to render content
* Defer the binding of PCData to struct elems using a placeholder mechanism.
* Translate text nodes to marked-content sequences in IF structure tree.
* Replace ptr with structure tree element.
* Re-order table footers so they appear at the end of the structure tree.
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ImproveAccessibility@1236718 13f79535-47bb-0310-9956-ffa450edef68
Introduced IFContext to provide access to foreign attributes (as discussed on fop-dev).
Removed the foreign attributes map from the drawImage methods as a consequence.
Added support for foreign attributes on the page (PCL's paper-source and duplex-mode extensions).
Fixed a couple of bugs parsing the document navigation elements.
Build-time test suite now runs through.
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_AreaTreeNewDesign@730740 13f79535-47bb-0310-9956-ffa450edef68