Added test for add-contenthost/removecontenthost for host-collection
implemented activation key test test_positive_create_activation_key_5
fixed the add/removecontent-host test for hostcollection
Merge pull request #1217 from alda519/709_act_key

implemented activation key test test_positive_create_activation_key_5
fixed the add/removecontent-host test for hostcollection
Merge pull request #1221 from tkolhar/test_cli

Added test for add-contenthost/removecontenthost for host-collection