** Fixed a typo in HtmlMaterialEmbedListeners
** Removed generic material backing bean (solution did not work
correctly when submitting queries)
** Changed workspace material binary to answer from /materials.binary/
instead of /materials/binary/
** Added workspace html material implementation
** Added request handler that redirects materials to their appropriate
viewers  
** Registered html backing bean in workspace plugin descriptor
** Removed deprecated binary and html material viewers and editors