So I made verbose a bit smarter and return valid JSON in all circumstances

I don't know why it says I changed 22 files.  Perhaps it's line-ending stuff?

The only files I actually changed are Mixpanel.as and MixpanelTest.as.

I also updated the Test Suite to check for valid JSON.  I saw the test name notation for the one test I added in a book called The Art of Unit Testing.