Comment 3 for bug 1514627

Tyr, Travis, and I have been doing some work in some patches that adds promises to Actions, which we think is a deficiency. This could help fix the problem, so perhaps we can put up a patch that:

1) Has the actions return Promises from their perform() function.

2) Modifies the actions/etc. directives to allow controllers to establish a handles for action completion.

3) Add the handler for that action completion to the Image controller.