handle HTML entity characters properly+discussion

may need to look at url_key generation to make this work.

ok, keys and url_keys now both handle html entities. there may be more discussion of specific handling, specific characters, etc, (including some issues with the ampersand thing above and creating from links) but most should probably be tracked separately.

  --Ethan McCutchen.....Fri Nov 05 11:50:59 -0700 2010