Fixed the annoying glitch at the edge of the map, caused by - wait for it -
float operation inaccuracy. Now i count the invalid varying with 1 less
addition and one less divion, mathematically the same way, but technically,
this counts a LOT.

Also updated oglwrap.
Updated oglwrap and the prebuilt executeable. Also a small change,
block ringCount should be 1 greater than was before.