Added sample pdf page images
Moved faculty publications partial to new location, added some methods that support the book viewer to the application helper (from https://github.com/mkorcy/tdl_hydra_head), removed .text from OM metadata in a view template
Added pdf pages controller, helper, and routes, all from https://github.com/mkorcy/tdl_hydra_head . Removed some includes from the controller as they're no longer supported.
Merge branch 'master' of https://github.com/TuftsUniversity/tdl