use a named subject
mint_ezid returns the pid; need a configurator to get further
a bunch of configurator stuff
Merge pull request #6 from no-reply/working

Some configurator stuff and other minor changes
only require lib/hydra/ezid dir and autoload stuff in that directory; fix included do invocations; rename Error to MintError and subclass StandardError; move MintError into own class
Pull configurator to model method
Stub instead of save
Add pending explanation so i don't forget
Merge pull request #7 from jechols/develop

Minor configurator and test updates
Require ezid library
Pull mint_ezid stubbing to before block
Create ezid via yaml data

Not finished until we get generate_ezid into ezid gem, but this gives
us the right format in theory
Merge pull request #8 from jechols/feature/finalize-mint

Finalize mint_ezid functionality
allow models to config ezid locations
Support for key and file configurators
remove speculative stuff about routes and helpers from README
tighten up README prose