The tor service is now started by calling a script which runs tor
according to the current container user. If the user is root, the script
will begin the tor service as normal. Otherwise, it runs tor as the
current user. This primarily is meant to address the issue with Heroku
builds (which don't have a root user) not being able to start tor as a
service.
Also refactored the rc/ dir to misc/ (with a tor/ subdir) since that
makes more sense.
Ben Busby