This release contains a bug in antsRegistrationSyN.sh that is fixed in the 2.3.4 release.

• n4 bug fixes
• Unsharp mask filter added to ImageMath
• Bug fixes for ImageMath morphological operators
• Command line arg bug fixes and improvements for N3BiasFieldCorrection, antsRegistration, antsApplyTransforms, antsMotionCorr
• Option to install libraries only for more compact ANTsR builds
• Multiple code updates for C++11
• DOC: none sampling strategy
• ITKv5 compatibility
• cmake improvements for containers, distribution, etc