se meta plugin for titles instead of just h1 tags

se meta plugin for titles instead of just h1 tags

This eliminates the doubled-up titles I had before on every
inlined page. The reason I hadn't done this originally is that
I didn't want the title to appear on the main page. I've fixed
that now with a little suppresstitle hack in the ikiwiki source,
(should do a customizable template feature instead to be able
to push something upstream).