Add support for creating invoices; bump version.
Add support for list objects, and the new invoice lines API.
Fix test failures
Merge branch 'invoice-lines-support'
Update changelog
Ignore the composer lock file since the vendor directory is already ignored.
Move the Stripe class declaration to it's own file.
Change the composer configuration to autoload using a classmap instead of PSR-0.
Merge pull request #22 from scottlangendyk/master

Fix fatal error when using an autoloader
Bump version
Add support for updating disputes
Bugfix for retrieving null attributes
Bump version to 1.7.10
Fix null attrs without breaking tests
Include CouponTest and PlanTest and fix bugs in both (fixes #23)
Fix class of PlanTest
Don't attempt to save bogus fields on plans

We no longer support passing arbitrary parameters (and ignoring the
ones we don't recognize)
Convert "plan" API objects to Stripe_Plan PHP objects

This should fix the tests.
Bump version to bring constants back in line (fixes #26)
Add support for setting API version.