fixes #3917 - replace protected_attrs with strong parameters

Filtering of attributes has moved from the protected_attributes gem to
strong parameters in controller concerns, to be in line with current
Rails recommendations.

Concerns are shared between UI and both API controllers and list the...

Refs #3809 - Using defaults for AndOr cop

Refs #3809 - Turning on the AndOr cop

fixes #15625 - vmware: add cdrom only when selected

Fixes #8289 - handle user data in ovirt

Fixes #15345 - allow changing oVirt CA certificate

Fixes #15372 - Merge the correct hash when adding new volumes

Use 'attr' passed into the method and not the attrs hash on the cr.

Fixes #15344 - recover from fingerprint error on validation

Fixes #15066 - operating systems and ovirt < 3.6

The operating systems endpoint was added in ovirt 3.6
https://bugzilla.redhat.com/show_bug.cgi?id=1050243. Older versions
were failing getting 404 when provisioning.

This patch adds a check for this case. We also cache the operating...

Fixes #15163 - use new oVirt CA cert endpoint