Merge pull request #35 from adam-vessey/7.x

Parameterize the islandoraUrl, so it should be more portable.
Correct an unintended difference from the previous: Order of items

Slipped my mind with my last change that the order of the elements
changed, when I replaced all the apply-templates with a single
fully-recursive call...  Compromised, and made all the paths look
relative to the current element.