rename MARY logo pdf
switch to standalone class to typeset MARY logo
archive HTML licences from mary.dfki.de/download for good measure
update CC licenses from creativecommons.org/licenses
add CC-BY-SA license
remove enst-catherine-hsmm and enst-florent-hsmm voices due to quality concerns
add French unit selection and HSMM voices from three speakers, built by Sathish
add Google and Dropbox mirrors for the six new French voices