Update valid option list and usage with new channel option
Update valid option list and usage with new channel option

chef/omnitruck,chef/opscode-omnitruck,chef/omnitruck,juliandunn/opscode-omnitruck,juliandunn/opscode-omnitruck,chef/opscode-omnitruck,juliandunn/opscode-omnitruck,chef/opscode-omnitruck,chef/omnitruck