new map generator

[paradoxharbinger]

@drP

like the ideas. i hadnt thought about expanding on the terrain types yet, but i'll keep it in mind so that i don't have to rework everything later.

btw, could you expound on tmask ter #? nt sure what youre looking for here

@gandalf

i didnt list the commands in the readme because i set up a web page listing them. i'm a bit lazy, so you'll have to forgive me. you can find most of the commands here.
the commands that i've added since v0.50 are in the changelog, i havent gotten around to updating the site on account of school sucking at my soul, but it'll be updated eventually.