feat(debug): add IonicErrorHandler

src/util/ionic-error-handler.ts

@@ -0,0 +1,14 @@
+/**
+ * This class is an internal error handler for Ionic. We can often add
+ * some nice goodies to the dev/debugging process by reporting to our
+ * dev server. To use this class, call `IonicErrorHandler.handleError(err)` from
+ * inside a custom `ErrorHandler` as described here: https://angular.io/docs/ts/latest/api/core/index/ErrorHandler-class.html
+ */
+export class IonicErrorHandler {
+  static handleError(err: any) : void {
+    let server = window['IonicDevServer'];
+    if (server) {
+      server.handleError(err);
+    }
+  }
+}