v3.7.0

The dreaded 'NoneType' object is not subscriptable is dead, long live the bug or something...

In all seriousness:

• Spotcast will now wait for the device to wake and retry calling it before failing. This should prevent most of the NoneType bugs that plagued people who had a "less good" relation with the Google API where it took too long for the device to wake up and spotcast assumed the device didn't exist.

A big thank you to @Ionshard who made the final PR but also @Maaxion for creating a first draft of the PR