Add a test for private content
tidying a spec
fixing grid layout in collection show and edit pages refs #134
adds tiff to image mime types
Merge pull request #11 from curationexperts/tiff

adds tiff to image mime types
Show thumbnails using the Blacklight thumbnail tag
Patch so that image/tiff is recognized as an image mime type
bumps the sufia-models version in gemspec
Makes Collections rely on Hydra::Collections refs curationexperts/absolute#134
Merge pull request #12 from curationexperts/better_collections

Makes Collections rely on Hydra::Collections
[embargo & lease] WIP adds ability to evaluate embargo and lease info
[embargo & lease] adds ManagesEmbargo module for finding embargoes and leases that need attention and applying their visibilities