feat(package): upgrade to ng v2.3+ (#574)

demo/src/app/components/file-upload/simple-demo.ts

@@ -0,0 +1,23 @@
+import { Component } from '@angular/core';
+import { FileUploader } from 'ng2-file-upload';
+
+// const URL = '/api/';
+const URL = 'https://evening-anchorage-3159.herokuapp.com/api/';
+
+@Component({
+  selector: 'simple-demo',
+  templateUrl: './simple-demo.html'
+})
+export class SimpleDemoComponent {
+  public uploader:FileUploader = new FileUploader({url: URL});
+  public hasBaseDropZoneOver:boolean = false;
+  public hasAnotherDropZoneOver:boolean = false;
+
+  public fileOverBase(e:any):void {
+    this.hasBaseDropZoneOver = e;
+  }
+
+  public fileOverAnother(e:any):void {
+    this.hasAnotherDropZoneOver = e;
+  }
+}