Fix the lumberjack.init script

 This patch fixes the following:
 * The init-script could be run as non-root user
 * When running 'start' it was possible to start the daemon multiple times
 * 'status' reported 'stopped' when daemon was running
 * LSB header contained wrong information
 * COMMAND was built before sourcing defaults file

Note: This script works on Debian Squeeze and Wheezy