Increase in fair usage limit

We’ve increased the fair usage limit for all our subscriptions from 1,000 credits to 5,000 per month (over a rolling three month period). That way you are able to look at lots of different images and transcriptions (particularly useful for the newly-added 1911 census) without running out of credit.

We have needed to set a limit in order to protect against abuse and the limit shouldn’t adversely affect the family historian.