(svn r10542) -Codechange: use class member instead of global variable for null ticks value

(svn r10541) -Fix [FS#1028]: cargo payment rates overflow.
-Fix: cargo payment rates diverge from cost rates making it impossible to make any profit after a certain number of years.
Both are solved by stopping the inflation after 170 years; there is absolutely no point in continueing the inflation after that as it only makes the game have overflows at some point that cannot be solved; using larger variables only delays the inevitable.

(svn r10537) -Backport r10536: added option for null-driver to configure how long it should run (-vnull:ticks=10000)

(svn r10532) -Update: WebTranslator2 update to 2007-07-12 19:08:41
catalan - 3 changed by arnaullv (3)
portuguese - 1 changed by izhirahider (1)
russian - 6 fixed by Smoky555 (6)
ukrainian - 6 fixed by fevral13 (6)

(svn r10522) -Fix: the "build truck station" GUI showed that it would accept tourists when it does not, whereas the "build bus station" GUI did not show them when it did accept them.

(svn r10521) -Fix: some NewGRFs did not check whether the newindustries bit was set, which breaks with a not-yet-finished-implementation of newindustries.

(svn r10520) -Fix: when a "can I build this industry tile here" callback did not fail, it doesn't automatically mean that the industry tile can be built there.

(svn r10519) -Fix: when getting a "nearby" tile, make sure you never roam outside of the map.

(svn r10518) -Fix: use the location of the industry and not INVALID_TILE for production callbacks; makes looking at the environment of an industry a lot more useful.

(svn r10517) -Fix: the "closest distance to water/land" calculation gave the distance to the north-eastern border instead of the closest water/land.