Fixed the hell out of the capture rate formula. #150

- Wobbles are based on WHICH number is greater than some pivot, not how
  many.  This was making everything totally wrong, especially 0 wobbles.

- HG/SS balls all modify capture rate, rather than ball bonus.

- Everything really is integer math; even the sqrts.  Bonuses are
  relative to 10, not 1.  HP is now treated as integer math, too.

- Implemented a minor game bug with very hard to catch Pokémon.