From: brian gerkey <bgerkey@po...> - 2002-02-03 00:49:05
in the spirit of more tidying, i've moved all device-specific defaults
that users might want to change into a new header defaults.h. that's
where, for example, the defaults serial port for the laser is defined.
i also put in hooks to read in a configfile, but ran out of steam before
actually writing a parser. one day...