The `RegistrationResource` should return the payment entity created and its location.
Merge pull request #54 from CruGlobal/return-payment-on-create

The `RegistrationResource` should return the payment entity created and ...
The `Payment` ID should be set in the resource class, not the service, to ensure the resource can load it back out to return it to the client.
Add endpoints to get and update a payment.
- Note authZ is not built in yet since the method of doing so might be changing in the near future.
Renaming method from postPayment to getPayment.  Copy/paste bug
Merge pull request #58 from CruGlobal/get-update-payment-endpoints

Add endpoints to get and update a payment.
Merge branch 'master' into persistent-managed-sessions
Fixing compiler errors caused when merging master into this branch x
Force set the conferenceID on all pages to prevent the verification check inside the service from failing.
 - It tries to verify the user is authorized to add a page to the conference by comparing the contact_person_id to the logged in user's id
 - The conference ID on the page must be set for this to work
Shoring up `ConferenceResourceFunctionalTest` class to work with the new auth schema presented in this branch