Merge pull request #414 from jordandukart/7.x

Line length for travis.
added ability to specify file for ingest callbacks
Merge branch '7.x' of github.com:Islandora/islandora into 7.x
added ability to specify file for ingest callbacks
removed reference to DRUPAL_ROOT
format change
Merge pull request #415 from ajstanley/7.x

Adds file context for do_function and undo_function
Grab 5.9 version of drush for now.