<span>, so pages can use <h1> internally instead of needing to use <h2>.
* Updated all of ikiwiki's own wiki pages for that.
* Add pagetemplate hook, which can be used by plugins that want to mess
around with adding new stuff to the page template.
* Remove headercontent; the search plugin now adds the search box to the
header by registering a pagetemplate hook, and other plugins should do
similarly.
so I don't need to maintain two copies anymore.
You might also want to remove the files provided in the basewiki underlay
from your wiki, if you have not created custom local versions of them, so
that these pages will be automatically updated in future ikiwiki upgrades.