fix #47 by using pushObject instead of push
fix #47 by using pushObject instead of push

knownasilya/ember-plupload,tim-evans/ember-plupload,gustaff-weldon/ember-plupload,paddle8/ember-plupload,knownasilya/ember-plupload,gustaff-weldon/ember-plupload,tim-evans/ember-file-upload,tim-evans/ember-file-upload,paddle8/ember-plupload,tim-evans/ember-plupload