Fixed ContentViewDefinition's 'show' method to return only the json object.
Merge pull request #41 from omaciel/returnobject

Fixed ContentViewDefinition's 'show' method to return the json object
952236: Null lists or empty lists of systems should show not found to user
Merge pull request #40 from Katello/bkearney/952236

952236: Null lists or empty lists of systems should show not found to us...