Initial implementation of allowing cross-origin requests in the webfinger flow, so that the unhosted guys can use Diaspora.  May not work with caches-page on host-meta.  We'll have to use X-Accel-Redirect or something.

Tags that haven't been autocompleted and clicked on will be
added as tags as well. There should only be one tag like this
at a time, since adding a space between tags turns it into
a list item.

List diaspora id on profile pics, courtesy diasporg

fixed whitespace task mentioned in bug 1041