Merge topic 'SIMPLEITK-543_UpgradeITKTowards4.6'

b5ebf54b Updating to the official ITK v4.6.0 tag
Merge topic 'SIMPLEITK-567_AddScaleSkewVersorTransform'

eff3f7fe Correct skewed point expected value
0ca4c437 Adding testing of point transform and skew setter
10956555 Adding comprehensive testing for ScaleSkewVersorTransform
e666f1cc Adding wrapping for ScaleSkewVersorTransform
Merge topic 'SIMPLEITK-538_AddBSplineTransformSpecificInterface'

976770d8 Fix errors in the BSpline test
3d88af21 Adding GetCoefficientImages method
c678da7c Adding testing for the BSplineTransfromInitalizerFilter
72517420 Modify generate code for BSplineTransformInitializerFilter
35338d98 Rename initial generated files
32cac192 Adding initial generate code from json
f51efddb Adding rough json file to generate initial code
ff7aecb9 Adding basic testing for BSplineTransform
b54bea16 Adding transform specific interface for bspline transforms
812d21ce Adding protected constructor for derived classes to construct pimple
fbce697f Move Matrix/Direction conversion function to TemplateFunctions header
Merge branch 'master' into next

Change-Id: I28588a53598f51257bfd519c49b772bec69bdac4