1132919: Repo dialog information is updated without the need for a gui restart.
Merge pull request #1019 from candlepin/alikins/1128061_no_disconnected

1128061: Don't raise logged Disconnected on unreg
Merge pull request #1016 from candlepin/csnyder/update_repo_details_gui_1132919

1132919: Repo dialog information is updated without the need for a gui r...
Don't ask for org and environment with consumerid.
Disable RHN yum plugin for unentitled Satellite 5 systems.
Remove --force option for sat5to6.

In sat5to6, custom channels are allowed and expected.