chore(build): ng2 style guide applied,

- build process updated
- systemjs bundler added

BREAKING CHANGES:
- directives and selectors renamed to ng2FileSelect and ng2FileDrop

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

@@ -1,5 +1,3 @@
-/// <reference path="../../../tsd.d.ts" />
-
 import {Component} from '@angular/core';
 import {CORE_DIRECTIVES, FORM_DIRECTIVES, NgClass, NgStyle} from '@angular/common';
 import {FILE_UPLOAD_DIRECTIVES, FileUploader} from '../../../ng2-file-upload';
@@ -15,16 +13,16 @@ const URL = 'https://evening-anchorage-3159.herokuapp.com/api/';
   template: template,
   directives: [FILE_UPLOAD_DIRECTIVES, NgClass, NgStyle, CORE_DIRECTIVES, FORM_DIRECTIVES]
 })
-export class SimpleDemo {
-  private uploader:FileUploader = new FileUploader({url: URL});
-  private hasBaseDropZoneOver:boolean = false;
-  private hasAnotherDropZoneOver:boolean = false;
+export class SimpleDemoComponent {
+  public uploader:FileUploader = new FileUploader({url: URL});
+  public hasBaseDropZoneOver:boolean = false;
+  public hasAnotherDropZoneOver:boolean = false;
 
-  private fileOverBase(e:any) {
+  public fileOverBase(e:any):void {
     this.hasBaseDropZoneOver = e;
   }
 
-  private fileOverAnother(e:any) {
+  public fileOverAnother(e:any):void {
     this.hasAnotherDropZoneOver = e;
   }
 }