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More River Ports

In IR 2.0 ports were changed to be buildable on all coastal territory. This mod extends that to allow ports to be build on any habitable territory along major rivers. Adding about 270 new location for ports.
With the exception of those territories along the Rha (Volga) as both that river is incapableness from the rest of the map and the Caspian remains an unnavigable lake.

IR 2.0.x
Will likely conflicts with mods that change the province map around coast/rivers or adds ports of their own.

For anybody who wants to add this to there own mod the script used it this creation can be found here: https://github.com/Licarious/Port-Builder-2