Change "pages" to use more structure, in order to fix tokens.
Fix acquisition of dimensions from Djatoka.

Need to use Authtokens, so Djatoka can grab the image from Islandora.
Fix image path.
Be safe when accessing in the pages array, and add Drupal.t().
Merge branch '7.x' of git://github.com/Islandora/islandora_internet_archive_bookreader into 7.x-page-structure
Merge pull request #14 from adam-vessey/7.x-page-structure

7.x page structure