Fixed TimedTimelapse

Interval parameter gets now accessed correctly
Merge branch 'master' into devel
New config options for daemonization, configfile location and basedir location

Using --daemon {start|stop|restart} OctoPrint can now be daemonized/controlled in daemon mode. Via --pidfile it's possible to set the pidfile to use, --configfile allows specification of the config.yaml to use, --basedir specifies the location of the basedir from which to base off the upload, timelapse and log folders. I also updated the README to include some config file settings which were previously undocumented.