Allow for '$' in webpage view field showing activity

use ++$ to escape $ within [# ..... #] in webpage view field

[#(?object=activity;orderby=startdate)<tr><td>~subject~</td><td>~location~</td><td>++$~startdate~</td><td>$18235$</td></tr>#]

will be displayed like this

<tr><td>My subject</td><td>Mississauga </td><td>$2008-10-12</td><td>Hello</td></tr>