Add Google Analytics Events throughout the tutorial
Created by: mattfogel
In case it's easier to do this before #819 could you please add GA event tracking to the tutorial? That way we can better track where people get stuck. If resolving #819 is just as quick, you can ignore this issue and just do that, because being able to track the pages the user hits will have the same effects.
The event category should be: Tutorial And the event actions should be: step1, step2, step3, step4, etc.