Started clean re-implementation of

- reserving route
- preparing route
- locking route

New implementation now properly handles stop event from user.

Next things to implement:

- tracing train upon contact activation, taking care of:
    - causing contact
    - train's last position
    - route
    - plan.freeBehindTrain
- finish event, keeping brake processor in mind

resources/css/style.css

@@ -77,8 +77,8 @@ svg.Relay rect{
 	fill: white;
 }
 
-svg.allocated polygon,
-svg.allocated rect:not(.sig_a):not(.sig_b){
+svg.reserved polygon,
+svg.reserved rect:not(.sig_a):not(.sig_b){
 	fill: yellow;
 }