Fix event handling for actions on the review request page.

Review Request #9139 — Created Aug. 16, 2017 and submitted — Latest diff uploaded

Information

Review Board
release-3.0.x
6889164...

Reviewers

A recent change to the review request page moved the handling of the
Collapse All and Expand All buttons into the Backbone events listing for
the page's view. This overrode the events for the parent view, breaking
all actions.

This change updates the events to include those from the parent view,
fixing action support.

Tested all the actions and the Collapse/Expand All buttons to make sure
they all worked.