Shopify/active_merchant — pull request #1123 by berkcaputcu (2014-04-15 18:42:22+00:00)
Title: Fix an issue with thousand separators in SagePay

## Problem
SagePay returns the amount with thousand comma separators. This is not aligned with expectations from AM. AM expects `gross` to be "the money amount we received in X.2 decimal."

## Solution
Remove commas that are followed by 3 digits in the amount.

@bslobodin @bizla