Release 1.0.3.1

Added option to assign custom names to each driver/vehicle.
Fix for lua error when reaching last waypoint.
Recalculation button is now set to always be visible in edit mode.
Improved save and delete waypoint perfomance (significantly).
Added option to select recalculation speed.
Fixed handling of 'continue' button in combine mode.
Greatly improved path finding speed in many situations.