Update __init__.py

Typo in one of the error messages
Merge pull request #42 from mikez/master

Update __init__.py
add support for closing disputes
Merge pull request #46 from stripe/lg-dispute-close

Support for closing disputes
adds close method to init
Merge pull request #47 from stripe/lg-disp-close

adds close method to init
Bump version
metadata api support
bump version
Merge pull request #48 from stripe/metadata-api

Metadata API support
updated the error message for del StripeObject['attribute']
removed incorrect test
bump version
Adding ApplicationFee resource.
Add ApplicationFee tests & fix indenting to be consistent
Add ApplicationFeeClient to CLI
most unit testing
full unit tests
refactor into modules and pep8ify
Refactor StripeObject and improve testing further