Add RDF statements on paste
Clean up metadata code into a helper class
Use bookmark to get a subject URI
Save literal properties as RDFa, and add tool to extract metadata
Change output to RDF/XML using LO API
Set bookmark name based on XML ID, and use the same name in the image
Rename bookmark/image tag to warn users about not changing it
Copy RDF metadata to clipboard.
Fixe type that broke getting the PNG data, and support libcredit
Let rdflib handle charset detection, and handle cases where nothing is copied
Fix charset handling when pasting into presenter
Revert to putting UTF-16 on the clipboard, since the Firefox plugin seems to get confused otherwise.
Put RDF/XML on clipboard as UTF-8, now that the Firefox addon can handle that.
Add "Copy with metadata" context menu item.
Fix paste in Writer.
Merge pull request #3 from commonsmachinery/copy-rdf

Merge paste and copy RDF