Comment 6 for bug 1183964

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/jboyer/lp1183964_payment_limit

Here is a fix that corrects the problem and also offers additional benefits. This adds 2 OU settings, a warning amount and a maximum payment amount. Any payment accepted over the warning must be verified by staff, and no client payments will be accepted over the maximum amount. Default values of 1000 and 100000 are built in to the code to prevent accidentally accepting a barcode as an amount, but not inconveniencing staff for normal transactions.