Systems: adding scaffolding for nutupane bulk actions.
Systems Nutupane: renaming "right pane" to "action pane".
System nutupane: reorganize angular functionality into modules.
Nutupane - Adding a wrapping factory for KT.routes.
Nutupane: ensure bulk actions pane opens if details are visible.
Adding i18n angular filter for translations.
Moving javascript so modules will work in non-experimental mode.
Adding a system-groups $resource.
Nutupane - Moving bulk action templates under app/assets/views.

The bulk action templates were living under public/ but Rails cached
these even in development mode. By moving them under app/assets/ the
templates will be reloaded and can still be loaded under public in
production.
Nutupane - Re-factoring and clean-up, addition of SystemGroup loading.

This re-factors the Nutupane factory to be a re-usable object factory.
The change requires each object using the Nutupane factory to instantiate
an instance of it through `new Nutupane()`.

The current_organization value was re-factored to follow naming
conventions and is now CurrentOrganization.

Includes addition of SystemGroup search functionality in API layer.
Nutupane: provide ability to add systems to system groups.
Nutupane: updating count after adding new system to system group.
Nutupane - Minor style tweaks to system group pane.
Nutupane: minor stylistic changes to nutupane bulk actions.
Nutupane bulk actions: fixes after cherry-picking.
Nutupane: using triple equals instead of double and fixing HTML spacing.
Nutupane Bulk - Cleaning up API controllers.
Merge pull request #2434 from Katello/nutupane-bulk-actions

Nutupane bulk actions support (and add system(s) to system group(s))