I've long been opposed to adding this delay, but a proper fix (for deferred,
async rating) that meets the needs of our current project will require
changes that I don't have time to take on for a little while. As such, this
will be a temporary solution for hopefully no more than a month's time.
* src/client/Client.js (_initBeforeLoadHook): Pass value to event in
addition to step id.
* src/client/event/RateEventHandler.js: Implement delay.
DEV-6145