- Use sl4fj as a backend to org.libresonic.Logger
- Output the same logs to libresonic.log as the console
- Use spring-boot logging constructs
- Turn down logging to error for non-libresonic classes info for
libresonic classes and liquibase (perhaps change this in the future,
but might be helpful for folks migrating their databases).
Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>