Add Marc Abramowitz to AUTHORS
Formatting
GraphAPI nested exception can't be pickled, which fails on celery tasks.  Fixed and added regression tests.
Changed the comment and added a newline to the end of the file.
Define GraphAPI exceptions in the 'exceptions' module.
Define SignedRequest exceptions in the 'exceptions' module.
Nitpicking
Bump version to 0.8.2
Fix a bug that caused batch requests with a body to fail.

Fixes #55.
Add facebook_test_user support.
Merge pull request #56 from pazur/master

Add facebook test user support
Clean up tests
Add tests for facepy.test
Refactor FacebookTestUser
Refactor TestUserManager
Refactor test user context manager
Add make documentation
Document test module
Implement get_extended_access_token
Document get_application_access_token