Description of problem:

When publishing content views, one can select the "Promote" checkbox to automatically promote to certain environments when the publishing is done.
However, doing so does not fire the "actions.katello.content_view.promote_suceeded" event, even tho the promotion did succeed.
 

How reproducible:
100%
 

Is this issue a regression from an earlier version:
Probably not
 

Steps to Reproduce:

1. Create a webhook that subscribes to actions.katello.content_view.promote_suceeded
2. Publish and promote a CV

Actual behavior:
Only a "Actions::Katello::ContentView::Publish" task is created, which does include a "Actions::Katello::ContentView::PromoteToEnvironment" step, but that seems not enough for Webhooks to fire actions.katello.content_view.promote_suceeded

Expected behavior:
actions.katello.content_view.promote_suceeded fires, as a promote did suceed

Business Impact / Additional info: