"delay" property not honored in alpha-0.8

[jackhamby]

delay number passed does not actually delay the scanning

working example
https://github.com/jackhamby/react-qr-scanner-delay-issue

to run:
npm install
npm run start

delay is set at 1000ms
on each scan we console.log("scanning")
open dev tools and see we console log scanning much more often than we should.
confirmed the delay still works in version 0.0.11