* Introduce the nicebundle. This is a kind of plugin, that just enables
many other plugins. It's an easy way to boost ikiwiki from its default,
basic wiki, to a full-featured wiki, without manually picking the right
set of plugins. New plugins will be added to the nicebundle from time to
time.
nothing more spohisticated will be needed.
* Add formbuilder_setup and formbuilder hooks.
* Split out a passwordauth module, that holds all the traditional password
based authentication etc code. It's enabled by default, but can be disabled
if you want only openid or some other auth method.