Katello/katello — pull request #265 by bbuckingham (2012-06-28 20:26:14+00:00)
Title: system groups - api/cli - add ability to list errata by group

This request contains changes necessary to allow a user to list the errata associated with a system group. Since the 'system' errata is currently under the errata component, the 'system_group'
was added there as well.

The following are a few examples of using the cli:

- list the errata for group 1
errata system_group --org ACME_Corporation --name group1

- list the security errata for group 1
errata system_group --org ACME_Corporation --name group1 --type security

- list the security errata for group 1 but include more details
(e.g. list out the system names)
errata system_group --org ACME_Corporation --name group1 --type security -v