Add a check in the while loop for changed data

[djotaku]

So the new API contains a field called numDonations. Can use that to see if there's a new donation and, therefore, not stress the API. They allow 1 call per 15 seconds, but then ask for people on their git page to check this before checking their donors. So there's probably some compute expenses that come from checking the donors.

[djotaku]

Fixed