(svn r13251) -Codechange: rename _patches to _settings as that is more logic.
-Codechange: move all Settings into substructs of _settings in a way that they are logically grouped.

(svn r13233) -Fix: Replace some (incorrect) evaluations of TileOwner by RoadOwner.
-Fix: Before evaluating RoadOwner, check if the roadtype is present.
-Fix: Some places assumed that MP_ROAD means normal street.

(svn r12197) -Fix [FS#1788](r12134): show correct last year profit when the train had negative income
-Codechange: use GetDisplayProfitThisYear() to convert vehicle profit to readable form

(svn r12134) -Change: count the number of ticks a vehicle was running this day to calculate running cost
-Fix [FS#1739]: vehicle profit is now counted with 8bit fract, so it is now shown properly in the vehicle details window

(svn r11959) -Codechange: Use macro to loop for specific engine types instead of using specific indexes each time.
-Codechange: Minor scope changes in said loops.

(svn r11523) -Codechange: Move the CHANCE macros to core/random_func.cpp cause they depend on Random()
-Codechange: Convert the CHANCE macros to functions and rename them fitting to the naming style