First working draft

This version asks for both e-mail address and name and creates one link for both host and participants.

To use this release you need:

1. a webserver with a mysql database running Laravel
2. a BigBlueButton server with a working STUN/TURN server
3. an IRMA server to verify the attributes

In this version a complete Laravel is still included, we will remove the Laravel framwork from this codebase later.