frankmullenger/silverstripe-swipestripe-flatfeeshipping — pull request #1 by icecaster (2013-08-26 05:57:21+00:00)
Title: Adding ability to affect Rates via Extension

Added Extension callback "updateFlatShippingRates" to allow modification of rates externally via SS-Extensions. Needed for https://github.com/icecaster/silverstripe-swipestripe-shippingclasses to work