fix amazon fps tests; make them easy to maintain

fixed bitcoin gateway tests

fixed braintree tests; make it easier to debug

fixed google checkout tests

fixed worldpay tests; removed html fixtures

skip paylane tests if not configured
added travis-ci integration

added Django to requirements .. (duh)

pip freeze > requirements.txt

fix travis test script

looks like . is not allowed in env vars; using __ for now

missed a return statement .. /facepalm

fixed bitcoin dependency .. *fingers crossed*

fixed bitcoinrpc version .. yippie
added travis status badge

fixed travis badge
updated travis-ci for agiliq/merchant