Pass some parameters into random_road.py
Pass some parameters into random_road.py

The straightiness of the road is now configurable, although loops
don't really work yet. The problem seems to be to do with the level
object having a very recursive list of connected nodes.

mikebryant/rapid-router,CelineBoudier/rapid-router,mikebryant/rapid-router,CelineBoudier/rapid-router,CelineBoudier/rapid-router,CelineBoudier/rapid-router,mikebryant/rapid-router,mikebryant/rapid-router