V1.8 - Many Fixes

I have fixed many things, and added some requested functionality.

Many bug fixes, will get better at keeping track of them.
You can adjust exploration range, and it can now be a single tile for roguelike games, eg, the  tile you walk on, if you set the exploration radius to 0.
You can turn off the smooth exploration circles, and have it show exactly the tiles explored now so it is more accurate.