Patch: Tiny Patches

[zzoru]

I made some tiny tiny patches for comfortable play.

Git: https://github.com/zzoru/OpenTTD-TinyPatches

OpenTTD-WASD Patch v0.2 (Deprecated..?)
For my HHKB2, I want to play OpenTTD using wasd keys instead of arrow keys.
So, I made a WASD patch.

OpenTTD-AutoTram Patch v0.1
Town can build tram roads.

OpenTTD-ScrollHotkey Patch v0.1
OpenTTD hotkey system doesn't support scroll keys. This patch adds hotkeys of scroll keys.