v6.2.1

• Removed commented out line that was changed in commit bd53011. [David Chandek-Stark]
• Adding CONTRIBUTORS.md [Jeremy Friesen]
• Patched Hydra::PolicyAwareAccessControlsEnforcement to properly handle anonymous users by amending #policies_with_access (previously returned empty list when current_user is nil) and #apply_policy_individual_permissions. [David Chandek-Stark]
• Change the version of hydra-head in the readme [Justin Coyne]
• Updating hydra generator for rspec [Jeremy Friesen]
• Removing trailing whitespace from generators [Jeremy Friesen]
• Update CONTRIBUTING.md [Justin Coyne]