v1.0.0

Changes since last release

• Final release of 1.0.0!
• Support slashes in IDs for Fedora adapter.
  dlpierce
• Added find_many_by_ids query.
• Enforces only persisting arrays - no scalars.
• Fixes casting edge cases for Set and Array.
• Significantly improved documentation
• Support Booleans
• Support RDF::Literal
• Fix support for DateTime.
• Fix rake tasks leaking out of gem.
• Extract derivatives/file characterization to
  valkyrie-derivatives
• ChangeSet shared spec
• Allow strings as an argument for find_by.
• Improve development documentation.
• Throw error on find_inverse_references_by for unsaved resource.