Last automatic touch

make <sup> more TEI friendly (<hi rend="sup">). Even if it's one of
the weirdest tag in TEI ever :). Make abbreviation a sigle word:
<w>1<hi rend="sup">er</hi></w>

make aujourd'hui a single word: <w>aujourd'hui</w>.
Last autmatic regen

Add a metadata.csv for import in TXM.