Updated the test app and added openApplink() test.

Updated the test app and added openApplink() test. Also created pull request for the plugin https://github.com/blackberry/DistimoSDK-PhoneGap-Plugin .

Test steps:
1. With wifi connection, click the button. App world is invoked and shows a distimo test app.
2. Without wifi connection, click the button. Browser is invoked. Reconnect wifi and refresh the page. App world will be invoked and shows the distimo test app.