fix(package): update zone.js to version 0.8.20
fix(package): update zone.js to version 0.8.20
marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo