Allowed deferred initialization of the cache backend.
Allowed deferred initialization of the cache backend.

rapind/rack-throttle,dryruby/rack-throttle,melriffe/rack-throttle,kidlab/rack-throttle,bendiken/rack-throttle,shanetmoore/improved-rack-throttle-w-expiry,WindStill/rack-throttle,teampayoff/rack-throttle,scottwater/rack-throttle,npolar/rack-throttle,spire-inc/rack-throttle