Flask-httpauth

- documentation changes ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/5c98ed8370355a60e22e017a79d5575adadb9c07))
- documentation for stored ha1 feature ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/37fd9288abb4f11abf9f93303d1bce4e6cfc3c19))
- Include notes for nginx ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/ed8b4a3c954240cde0c66af3d6dae37df48ba976)) (thanks **Erik Stephens**!)
- Include notes for nginx as well ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/5bccbae862cbf1ca7d02f717b076aca86b1456e5)) (thanks **Erik Stephens**!)
- Update docs with WSGI notes ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/9ddd55f0bcb793a49675274dc22ae15122a8a1ff)) (thanks **Erik Stephens**!)
- Update README with WSGI notes ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/af5fa26dc73d401de7760ba3dcd61828c2e548dd)) (thanks **Erik Stephens**!)
- Modified documents and readme for correct import statement [19](https://github.com/miguelgrinberg/Flask-HTTPAuth/issues/19) ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/b75737593f3d97b18620440e7e41ee9b71b23f11)) (thanks **Aayush Kasurde**!)

- Support anonymous users in verify_password callback ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/5c5396bbb7af540a7aff786ce3282657566045f2))
- Add HA1 generation function to HTTPDigestAuth class ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/4f4aed3ed3fa5e96a1a052e4414f14d1fc49b8bb)) (thanks **Pawel Szczurko**!)
- Fix unit test url routes ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/a490a521a17313ce82bfe886912b1620166eb6dd)) (thanks **Pawel Szczurko**!)
- Add option to use ha1 combination as password instead of plain text password ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/c84429f541ed0069f40fb901dcb3df44b801c9a5)) (thanks **Pawel Szczurko**!)
- removed extra strip() calls in unit tests ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/fc34cc5020168ca3824cc4a740b2010bb3132abf))

- pep8 ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/4657d5b37e50483ecccabf0887ea417d3b94ea0a))
- Fixed problem with couple of decorator that destroy function they decorate [11](https://github.com/miguelgrinberg/Flask-HTTPAuth/issues/11) ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/0adf45bec7e5fb04a0e14e13396fd867879026b4)) (thanks **Nemanja Trifunovic**!)
- Ignore authentication headers for OPTIONS ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/044b7d4a44425a4b9d02280b80988e8986641a0d)) (thanks **Henrique Carvalho Alves**!)

- [5](https://github.com/miguelgrinberg/Flask-HTTPAuth/issues/5): correct handling of None return from get_password callback ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/b94dc8e5fb6c914fdf971085b329bf9ad848a8f5))
- [5](https://github.com/miguelgrinberg/Flask-HTTPAuth/issues/5) ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/051195d68d8aaf6d9e53d14d69a59afd84f24821))
- Fixed problem when get_password decorator destroys function it decorates [4](https://github.com/miguelgrinberg/Flask-HTTPAuth/issues/4) ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/0cbee173e96f8e1a533e7d82b5b1fa1bfce3cd04)) (thanks **Nemanja Trifunovic**!)
- custom password verification callback ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/33d60f21a6e64f1b2df24ea5035164110979d8ab))

- pass the username to the hash password callback ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/13075ec4dbe4cb733f4f433e1e25e8a180fce1f6))

- changed auth.username to auth.username() ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/5168a5f703552ec092e3fef9e087052e35fb6ff0))
- 2.0 documentation update ([commit](https://github.com/miguelgrinberg/Flask-HTTPAuth/commit/e668f59cb674e45891b7d9548e5af3028f2fd22d))