Fixed RIPPLE-47:navigator.notification.confirm can't get correct index of button pressed

https://issues.apache.org/jira/browse/RIPPLE-47
The license name does not conform to the SPDX standard.

Was "Apache 2.0"- should be "Apache-2.0" per:

https://spdx.org/licenses

Via:

https://github.com/apache/incubator-ripple/pull/16
Corrects issue where it can't find latest Cordova
Bump to v0.9.20.