Created a new interface to send messages down to the local navigator (presumably from the mystery layer).
Moved the smrtln interface to the drivers folder so that it is easier to build a driver that uses it, such as the now updated art_pot_driver.
Reworked the script_gen to read a single configuration file instead of hard-coding everything. So now an experiment can be described by that single file (experiment.conf) instead of all of the conf_*.ini files.