Adds a Fishing Trawler ship for cargo-ships with dual placement behavior: on waterways it becomes the rail ship, off-waterway it stays as an independent boat.
A friend had trouble joining with this mod today, even though it wasn't updated recently.
The specific problem was:
Cannot join. The following mod event handlers are not identical between you and the server. This indicates that the following mods are not multiplayer (save/load) safe (See the log file for more details):