Updating SimpleITK along 0.9beta
Created by: blowekamp
This update includes:
d5b32be Merge topic 'SIMPLEITK-457_AddExhaustiveOptimizer' 2e4af8c Merge topic 'SIMPLEITK-622_LevelSetMotionFixImageNames' a15c3f2 Merge topic 'SIMPLEITK-623_AddOptmizerWeights'