fixes building of foreman glue rpm
880125 - Errors message when no key can be found

Print an error message when deleting or updating activation
key via CLI and user specifies wrong key name.
added lib/resources/abstract_model dir and its contents to the .spec file
Merge pull request #1464 from witlessbird/moar_spec_fixes

fixes building of foreman glue rpm by including models/ext/ dir
Merge pull request #1465 from ares/bug/880125-cli_activation_key_validation_messages

880125 - Errors message when no key can be found