Facepy

Added
- `GraphAPI` now supports securing Graph API requests with application secret proofs.
- `GraphAPIpost` now supports user-generated images.

Fixed
- The last bit of the tuple returned from `get_extended_access_token` is now `None`
if the access token won't expire.
- `GraphAPIbatch` can now handle more than 50 requests at a time.
- Fixed a bug that caused unicode URLs to fail.

Added
- Changed `GraphAPI` methods to return `decimal.Decimal` instances for floating-point
numbers instead of `float`, which can cause precision losses not acceptable for
financial operations.
- Nested dictionaries, lists and sets are now automatically encoded as JSON.
- You may now elect to not verify Facebook's SSL certificate.
- You may now substitute colons with underscores in keys such as `fb:explicitly_shared`.
- Facepy is now compatible with Python 3.

Fixed
- Fixed a bug that caused parsing signed requests to fail when the `user` key
is not present.

Fixed
- Fixed a bug that caused a KeyError for signed requests that were missing
some keys for its "page" attribute.

Added
- You may now extend access tokens with `get_extended_access_token`.

Fixed
- Fixed a bug that caused batch requests with a body to fail.
- Fixed a bug that caused paths that started with a slash to fail.
- Fixed a bug that caused exception messages to be omitted.

Added
- Facepy exceptions may now be pickled.

Fixed
- Fixed a bug that caused pagination to stop prematurely.