Train fix and horn update

Trains was a biggest issue in multiplayer mode, but not anymore. All known bugs related to the trains was eliminated.

Also, due to popular request, horn signal was added back to the game (I forgot about that), so, common down and honk around :)

Release date is still unclear, but it is approaching. Make sure to follow me on Twitter @MintArcade for the latest news, updates and other projects.

Best of luck and may the fork be with you!