webanno starting with embedded db

[zeichenkette]

mysql is not started correctly so webanno switches to standalone mode using an embedded database.
This is not recommended when webanno is used for production use

[arne-cl]

We should recreate the setup using docker compose (one container for tomcat/webanno and one for MySQL).
Here is an example of how such a setup might look like:

https://github.com/dmulligan/docker-example-nginx-tomcat-mysql/blob/master/docker-compose.yml

[arne-cl]

Here's another updated installation guide:
https://github.com/sfu-discourse-lab/WebAnno