Update 0.2.1 Hotfixes

Some hot fixes

• Fixed Town growth function.

• Fixed problems with signals and multi-unit trains.

• Fixed train leaving depot not updating connected signals.

• Fixed problem with train Move to Depot not updating signals properly.

• Fixed bridge costs not showing.

• Better vehicle speed balancing.

• Fixed full train speed value in the depot window not showing up properly.

• Added Empty Train speed to the depot window. Depot now displays Full speed/Empty speed (Maximum speed)

• Locomotives operating in tandem have flat -250 000 € operating cost. Depot now displays Main engine Op. cost/Tandem engine Op. Cost

• Fixed log wagon.

• Improved railroad snapping and added rail/road spline endpoint snapping.

• Added road non-freeform snapping.