Test "Add Games to Calendar" feature

[mass]

There is some confusion as to whether this works on older versions of android, non-stock google roms, etc. It should be tested more thoroughly and an error message should be shown to the user if their phone doesn't support the feature.

[dubi13]

I think the problem has to do with the version of SDK. If the phone has a lower version, then the app should not even be updated because Google Play checks for it before .