most unit testing
full unit tests
refactor into modules and pep8ify
Refactor StripeObject and improve testing further
deprecate python client
basic unit test for pycurl
unit test new style http libraries
unit test http library order
integration test for ListObject
Stripe module attribute deprecation

Start warning on deprecated stripe module attributes and update
test code to avoid accessing deprecated attributes
consistent string formatting
Deprecate APIRequestor class methods
further integration testing
fix travis CI build
fix travis CI build (attempt 2)
keep encoding out of util
pep8ify
Python 3 compatiblity
use flake8 in a Travis compatible way
fix python3 tests