Experimental work-in-progress on "Movie" output from
annotated Proof General buffers.

The XSL files here are due to Carst Tankink, copied from the Proviola
project.  See http://mws.cs.ru.nl/proviola and these papers:

Carst Tankink, Herman Geuvers, James McKinna, Freek Wiedijk
Proviola: a Tool for Proof Re-animation
MKM 2010.

Carst Tankink, Herman Geuvers and James McKinna. 
Narrating Formal Proof (Work in Progress)
UITP 2010.
