Added support to copy class, instance, method automate objects.

- Added hidden product features to support copy of class, instance, method automate objects.
- Added copy buttons in toolbars and changed application_helper to display new buttons.
- Added support in controller for copy buttons.
- Added spec tests to test new model methods unlocked_domains? and all_unlocked_domains.
- Added spec tests to test copy of class in controller spec tests.
- Added any specific routes needed for these tasks.

Issue #105

@dclarizio @mkanoor @gmcculloug please review/test copy feature for Automate Class, Instance and Method objects
You can get the same thing by just doing `MiqAeDomain.where(:id => @sb[:domain_id])`, which returns an Array directly.