Fixing error with rounding error bug when calculating inverseTransform repeatedly during globalToLocal.
Fixing error with rounding error bug when calculating inverseTransform repeatedly during globalToLocal.

Fixes Issue 159

git-svn-id: d976a3fa9fd96fa05fb374ae920b691bf85e82cb@963 aadc08cf-1350-0410-9b51-cf97fce99a1b

tangentforks/piccolo2d.java