ENH: Replace custom OtsuThreshold filter since ITK now supports masks
Merge pull request #60 from aylward/newOtsuThreshold

ENH: Replace custom OtsuThreshold filter since ITK now supports masks
ENH: Replace custom OtsuThreshold filter since ITK now supports masks
Merge branch 'master' of git://github.com/TubeTK/TubeTK into FixSuperbuildAndDashboards