* Fix link() PageSpecs to not just look at the raw link text, but at where

* Fix link() PageSpecs to not just look at the raw link text, but at where
  that given link points based on the page doing the linking. Note that this
  could make such PageSpecs match different things than before, if you
  relied on the old behavior of them only matching the raw link text.
* This required changing the match_* interface, adding a third parameter.
* Allow link() PageSpecs to match relative, as is allowed with globs.a
* Add postform option to inline plugin.
* Add an bug tracker to the softwaresite example.