[Issue 174] _underline_ markup

http://cowiki.tigris.org/issues/show_bug.cgi?id=174



User cmarble changed the following:

                What    |Old value                 |New value
================================================================================
                  Status|NEW                       |RESOLVED
--------------------------------------------------------------------------------
              Resolution|                          |FIXED
--------------------------------------------------------------------------------




------- Additional comments from 
cmarble-jqHnx1hy4Dsdnm+yROfE0A@xxxxxxxxxxxxxxxx Sun Jun 12 06:52:40 -0700 2005 
-------
underline markup uses double-underline. i.e. __underlined__