- Bug Fix: Memory leak due a bad QuichCheck data generation
- clean up and reorganization
- test closure between grains in 2d and 3d and match with
the correspondent convex hull.
- add renderSVG for error visualization in 2D.
- Bug fix: incomplete triangulation and convex hull
  in both 2D and 3D. Missing case condition.
- add Criterion for benchmarking and optimizations.
- version 0.3.2
Merge branch 'dev' - Version 0.3.2
- fix cabal file: test flag for quickcheck and criterion
- remove identical copy of Main-quicker
- add "circumOrigin" and "circumRadius" to PointND
- improve truncation errors
- Brings signed distance inside "getFaceDistCenter"
- improves "findMinimunButZero" and add "findMinimunButZero'" for Maybe type
- fix point selection in case of flat Hull (multiple points precisely
  aligned on the same plane) by minimizing the circumscribed circle/sphere
  among those points.
- little clean up.
- add Show instance for Box2D.
- remove error handling for first face on first simplex. Assume correctness of underlaying functions and tested by quickcheck.
improve test suite
adjust dependencies
add scripts for batch test