NOTE: You must manually copy your image resources to your web server
such that the images are available from the "/images" root URL.
For example, if your resource is "vocab:definitions/icons/normal-word.tiff"
then it should be copied such that it is available via the following URL:
"http://myserver.org/images/basis/definitions/icon/normal-word.tiff"
(the original path is first normalized and then the Factor root prefix
is stripped away).
NOTE: Factor's definition-icons are in TIFF format, which appears to be
supported out-of-the-box by very few web browsers (namely Safari).
Perhaps we should switch from TIFF to GIF or PNG? Are these vocabs
ready to be used?