CODE: Enable 64-bit multithreaded compilation
FIX: Trains would start without reserving a route when a signal is located at the same tile on which the front vehicle makes a scheduled stop.
FIX: Convoys were not properly registered as being loading/unloading at a stop when the game was loaded, causing problems with scheduling slots, and possibly other issues.
Merge branch '11.x' into devel-new
Merge branch 'devel-new' into passenger-generation
CODE: Partly synchronise the cost/capacity/maintenance for buildings (formerly "station capacity", "station cost" and "station maintenance) as far as is desirable for Experimental (which must be different to some extent in this implentation due to meters per tile scaling). This steps the Standard version for building .pak files from 7 to 8.