- Included tests to cover for LDAP and SAML
- Updated wording for external auth id option.
- Updated 'assertPermissionError' test case to be usable in BrowserKitTests
- Was only used to disable registration when LDAP was enabled.
- Caused saved option not to show on settings page causing confusion.
- Extended setting logic where used to take ldap into account instead of
global override.
- Added warning on setting page to show registration enable setting is
not used while ldap is active.
For #1541