Added flash messages to authentication actions
Added flash messages for DB Adapter actions
Better header for authorization page
Better styles for authorization grid

- Used a header on the page (h2)
- centered text in all columns other than first
- s/name/controller service name/ in first column
- push checkboxes under http method names in headers
- created head, body, and foot sections of table
- moved save buttons inside head and foot sections of table
Patch operations when updating

- Use patch() instead of patchKey() when performing updates, so as not to
  overwrite older versions.
Updated authorization model tests

- Updated tests to cover actual config format expected
Properly reads/writes zf-mvc-auth authorization config

- nested array structure
Update Authentication model to use new oauth2 config structure

- DB configuration is now in oauth2.db
Better logic for ensuring appropriate auth info is displayed
Include an authentication type in the AuthenticationEntity

- to make disambiguating the entity type easier for clients
Use AuthenticationEntity "type" for display

- instead of type-specific fields.