Updates to FOA shipping provider.  Fixes build script.  Adds some unit tests.
Merge branch 'braintreeapi' of https://github.com/rustyswayne/Merchello into braintreeapi
Merge branch 'braintreeapi' into 1.5.0
Free Over Amount Shipping provider revisions
Merge pull request #933 from rustyswayne/1.5.0

Braintree provider updates and Free over amount shipping revisions