chore(package): update jest to version 19.0.0
chore(package): update jest to version 19.0.0

https://greenkeeper.io/

Altocloud/alto-react-ciscospark,ciscospark/react-ciscospark,adamweeks/react-ciscospark-1,bzang/react-ciscospark,ciscospark/react-ciscospark,Altocloud/alto-react-ciscospark,Altocloud/alto-react-ciscospark,adamweeks/react-ciscospark-1,bzang/react-ciscospark,ciscospark/react-ciscospark,bzang/react-ciscospark,adamweeks/react-ciscospark-1