[0.10.0] train shows on map on diagonal tracks only

[squisher]

I really like being able to see where on the track my running trains are, on the map (the tracks are all visible via scanners.) But they show only on diagonal tracks and disappear on up-down and left-right tracks.

[GewaltSam]

They did that in 0.9.8, too, but that would be a really nice feature.

[Luaan]

This would be extremely helpful, especially given how often the trains get stuck on more complicated designs.

[slpwnd]

This is not really a bug but rather a missing feature. Still we think it is a really useful one. So trains are now properly visible on map / minimap for 0.10.1.

[sillyfly]

Hooray! You guys are awesome!