Gssapi

Changelog

Bugfixes
- Always use custom-specified libraries when building
- Fix incorrect header file usage causing issues on Heimdal -- 61

Documentation

New, improved, and more usable -- 64

Changelog

Changelog items may be marked _LL_ or _HL_ to denote that they affect the low-level (`gssapi.raw`) or high-level (`gssapi`) APIs, respectively.

Bugfixes
- Fix compilation on Cython 0.22+
- Actually use any given acceptor credentials when accepting a security context

Features
- Add support for `add_cred_with_password` and `acquire_cred_with_password`
(accessible with the `password='pass'` argument to the `Credentials` constructor
and `Credentials.acquire`) -- 5
- Support Mac OS X compilation against GSS.framework
- **LL** Add support for the DCE and IOV MIC extensions -- 6
- Add support for RFC 6680 (Naming Extensions) - 4
- **LL** When `xyz(None)` would be a valid call, allow `xyz()` to mean the same thing -- 29
- **LL** Allow for mutating input credentials in `add_cred` (instead of returning a new set) -- 18

Documentation
- Document specific GSSAPI errors instead of just `GSSError`, when such information is available -- 11
- Fix `verify_mic` documentation

The first version. Implements all of RFC 2744, as well as RFC 5588, the credentials import-export extension, the credentials store extension, and the Service4User extension.