* Preliminary advanced snippets for claiming token
* Better frontend mouse click event handling
* Token overwrites now toggleable via config
* Disable compression for OpenVPN snippets
* Make sure image builder scripts are included in .whl package
* Token mechanism tests
* Various bugfixes
* 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