Update dependencies (#344)

* Update angular to 4.2.6

* Update rxjs

* Update webpack

* Update type definitions

* Update tslint

shared/src/polyfills.ts

@@ -1,3 +1,4 @@
+import 'core-js/es7/array';
 import 'core-js/es7/object';
 import 'core-js/es7/reflect';
 import 'zone.js/dist/zone';