Add a JavaScript extension hook for adding fields to the review dialog.

Review Request #7186 — Created April 8, 2015 and submitted — Latest diff uploaded

Information

Review Board
release-2.0.x
eb054be...

Reviewers

This introduces a new ReviewDialogHookModel extension hook in
JavaScript that allows custom UI to be placed right below the Ship It
label, above all fields. This allows an extension to provide extra UI
and information.

Added a test hook to rbseverity and saw my custom UI.