Todo

The upload directory (public) is missing and could not be created by the webserver. peut-etre lie au changement de langue.
 * 1) Math with LaTeX --> ok
 * 2) files upload configuration, autoriser : pdf, ps, eps, svg, tex, djvu, --> ok
 * 3) extensions : PDF Handler, DjVu, --> ok
 * 4) il y a un probleme lorsqu'on essaie de downloader une image, --> ok
 * 1) ASHighlight --> ok
 * 2) Sphinx interface
 * 3) look if a eps preview is available on mediawiki