Include new versions

[SimonSimCity]

Currently, you only keep track of the versions that have been installed on the device. But for me it would really be beneficial if I could check for a new version in the app- or play-store.

Some links are:

• iOS: http://itunes.apple.com/lookup?id={id}
• Android: https://androidquery.appspot.com/api/market?app={key}