CleverRaven/Cataclysm-DDA — pull request #10527 by Coolthulhu (2014-12-18 09:42:32+00:00)
Title: Reverse handbrake, z-level and fuel, reverse thrust

Fixes 3 simple issues:

Vehicles on different z-levels didn't call veh->idle, resulting in no fuel loss (despite power gain from alternators).

Handbraking with negative speed would result in instant stop, no matter how high the negative speed.

Thrusting against the current speed was not possible without cruise control turned on.