Facepy

Added
- You may now query application access tokens with `get_application_access_token`.
- `SignedRequest.parse` now returns a dictionary describing the payload of the signed request
instead of a `SignedRequest` instance.
- `SignedRequest.__init__` now accepts arguments `signed_request` and `application_secret_key`
and no longer facilitates for constructing arbitrary signed requests.
- `SignedRequestgenerate` no longer requires the provision of `application_secret_key`.
- `GraphAPI` now supports retries for `get`, `post`, `delete`, `search` and `fql`.
- `GraphAPIget` is now more intelligent about pagination and should no longer query Facebook for another page
of results if the current page has less elements than `limit`.

Removed
- `SignedRequestoauth_token` and `SignedRequest.OAuthToken` have been removed (deprecated since v0.6).

Fixed
- Fixed a bug that caused some exceptions to be returned rather than raised.

Added
- You may now access the original data of the signed request from `SignedRequestraw`.
- You may now issue FQL queries with `GraphAPIfql`.
- `FacebookError` exceptions yielded from `GraphAPIbatch` now include the request that
produced the error.

Fixed
- Fixed a bug that caused `GraphAPIbatch` to crash upon receiving legacy errors from Facebook.

Added
- Facepy will now raise `OAuthError` for authorization-related errors.
- Facepy will now reuse the connection to Facebook.

Fixed
- Fixed a bug that caused a KeyError upon parsing errors without an error code.

Added
- Facepy now raises `GraphAPI.HTTPError` for requests whose transport failed,
and `GraphAPI.FacebookError` for requests that produced an error in Facebook's API.

Fixed
- Fixed a bug that caused some errors to be ignored.
- Fixed a bug that caused an error for empty batch responses.

Added
- Facepy now supports batch requests.