Tests:
- In testing container, install Mumble. /etc/mumble/mumble-server.ini
has settings for ssl cert and key.
- In stable container, install Mumble. /etc/mumble-server.ini has
settings for ssl cert and key.
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>