Fixes #6773 - Host inherits Content Source from Hostgroup
fixes #6488 enable autosearch completion on Katello model filters
Fixes #7395: Turn off strong params for Candlepin proxies controller.
Merge pull request #4570 from eLobato/6773

Fixes #6773 - Host inherits Content Source from Hostgroup
Merge pull request #4385 from stbenjam/autocomplete

fixes #6488 - enable autosearch completion on Katello model filters
Merge pull request #4649 from ehelms/fixes-7395

Fixes #7395: Turn off strong params for Candlepin proxies controller.