Changes:

2019-1-2

	Changed the update process to preserve all settings/files/logs created by user/server.
	Changed to a new smaller base image (still debian).

2019-1-3

	Added an automatic check for new teamspeak server verstion on startup.
	added more information output to indicate what is happening in the docker logs.

2019-1-5

	changed the way user files are preserved during update process now it is much faster.