XHTML.M: added support for missing media types
XHTML.M: added support for missing media types

Ignore-this: b72f75e00354eaf285709e54ad65b68a

darcs-hash:20100722154317-8ea92-abe4f14f2d16c807a7deecc6c4fe68aba2bb613d

mfp/ocsigenserver,mfp/ocsigenserver