* Save token secret to config
* OpenVPN profile fixes for Ubuntu 16.04
* Raise correct exceptions for invalid tokens
* Display token expiration time in local time
* Remove PyOpenSSL based wrapper classes
* Remove unused API calls
* Add certificate renewal via X-Renewal-Signature header
* Remove (extended) key usage handling
* Clean up OpenVPN and nginx server setup code
* Use UDP port 51900 for OpenVPN by default
* Add basic auth fallback for iOS in addition to Android
* Reduce complexity
* Remove given name and surname attributes because of issues with OpenVPN Connect
* Remove e-mail attribute because of no reliable method of deriving usable address
* Remove organizational unit attribute
* Don't overwrite Kerberos cronjob during certidude setup authority
* Enforce path_length=0 for disabling intermediate CA-s
* Remove SAN attributes
* Add configuration options for outbox sender name and address
* Use common name attribute to derive signature flags
* Use distinct pub/sub URL-s for long poll and event source
* Replace PyOpenSSL with cryptography.io
* Rename constants to const
* Drop support for uwsgi
* Use systemd to launch certidude server
* Signer automatically spawned as part of server
* Update requirements.txt
* Clean up certidude client configuration handling
* Add automatic enroll with Kerberos machine cerdentials
* Add abstraction for user objects
* Mail authority admins about pending, revoked and signed certificates
* Add NetworkManager's OpenVPN plugin support
* Improve CRL support
* Refactor CSRF protection
* Update documentation
* Switch to Python 2.x due to lack of decent LDAP support in Python 3.x
* Add LDAP backend for authentication/authorization
* Add PAM backend for authentication
* Add getent backend for authorization
* Add preliminary CSRF protection
* Update icons
* Update push server documentation, use nchan from now on
* Add P12 bundle generation
* Add thin wrapper around Python's SQL connectors
* Enable mailing subsystem
* Add Kerberos TGT renewal cronjob
* Add HTTPS server setup commands for nginx
