fixes #18665 - call #to_h before comparing AC::Parameters to hash

Allows comparisons when ActionController::Parameters is separated from
Hash in Rails 5.0. #permit! is now called on inner hashes sent through
KeepParam (similar to rails/rails@e86524c in 5.1) so they are included...

fixes #18664 - ignore missing callbacks in SmartProxyAuth concern

Filters that are only registered on the UI controllers cause errors
when using SmartProxyAuth on an API controller under Rails 5.0.

Fixes #16982 - Scope properly when no taxonomies are set

The default scope for hosts and other objects did not restrict
properly by taxonomies. An user without organizations or
locations, could do anything it's permissions allow to.
The list of hosts was unrestricted and showed hosts in...

fixes #18568 - replace deprecated AC::Parameters#update

The #update method in Rails 5 is returning a HWIA rather than the
ActionController::Parameters instance, causing keep_param to return the
wrong object type. It is also deprecated in 5.0, so replace it with a...

fixes #13618 - cache expensive vmware api calls

Refs #15779 - make background processing unavailable for now (#4217)

The original PR got vetted in the packaging phase and including
foreman-task as dependency of Foreman was refused. We need to rethink
our approach for getting the foreman-tasks functionality available...

Fixes #17681 - Switch to newly created taxonomy

fixes #17545 - adds UI notification support

- Initial data model for notification support, based on manageiq design.
- addes notification JSON endpoints.

Fixes #18045 - Puppet classes show up choosing only env.

After #3551 was merged, the hosts controller requires both environment
and hostgroup to be set in order to display puppetclasses.

It shouldn't be required to have both, so we should check what's
available and use it. If it's only the hostgroup or the environment, it...

Fixes #6502 - List ignored classes and environments on import

When importing environments and classes from puppet, ignored
environments and classes defined in ignored_environments.yml
aren't aparent.

This will add them to the list to import as ignored and...