Forbid usage of diagonal roads

[GoogleCodeExporter]

I've got this suggestion from kamclub.ru members. They say narrow diagonal 
roads are a cheat and were not planned by KaM developers, they are just a side 
effect.

1. The graphics representation of narrow diagonal roads are wrong/weird
2. There are few bugs in KaM occurring on narrow diagonal roads (Serfs stuck 
and go off-road)

Following road scheme should be unwalkable:
X
 X
  X

Instead use this scheme:
XX
 XX
  XX

Original issue reported on code.google.com by kromster80@gmail.com on 4 May 2011 at 5:16

[GoogleCodeExporter]

I agree with this idea, I'll implement it in my next holidays :)

Original comment by lewinjh@gmail.com on 7 May 2011 at 1:40

• Changed state: Accepted

[GoogleCodeExporter]

Implemented in r2533 :)

Original comment by lewinjh@gmail.com on 8 Nov 2011 at 1:37

• Changed state: Fixed