Makes :title accesible on Worthwhile::GenericFile so that the Title field on GenericFile create/update form actually gets applied to the GenericFile object
refs #34
Merge pull request #36 from curationexperts/generic_file_title_accesible

Makes terms_for_display accesible on Worthwhile::GenericFile
[fedora-4] basic alignment with fedora-4 libraries
[fedora-4] Upgrade to fedora-4
removes @import of boostrap-sprockets -- was causing failures, seems to work fine without it.
ensures that visibility copy worker applies copies of leases & embargoes instead of re-using them