COMP: Fix missing vnl_abs in itkRingBuffer.
COMP: Fix missing vnl_abs in itkRingBuffer.

Change-Id: I9c770c23cce5bc79227f60047f626324d50eb378

hjmjohnson/ITK,fbudin69500/ITK,heimdali/ITK,paulnovo/ITK,fuentesdt/InsightToolkit-dev,hendradarwin/ITK,hjmjohnson/ITK,spinicist/ITK,stnava/ITK,vfonov/ITK,blowekamp/ITK,PlutoniumHeart/ITK,spinicist/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,fedral/ITK,PlutoniumHeart/ITK,jcfr/ITK,fuentesdt/InsightToolkit-dev,BRAINSia/ITK,Kitware/ITK,GEHC-Surgery/ITK,LucHermitte/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,richardbeare/ITK,vfonov/ITK,zachary-williamson/ITK,rhgong/itk-with-dom,fedral/ITK,jcfr/ITK,GEHC-Surgery/ITK,atsnyder/ITK,zachary-williamson/ITK,LucasGandel/ITK,PlutoniumHeart/ITK,fedral/ITK,LucasGandel/ITK,PlutoniumHeart/ITK,hendradarwin/ITK,stnava/ITK,GEHC-Surgery/ITK,hjmjohnson/ITK,thewtex/ITK,jcfr/ITK,BlueBrain/ITK,fedral/ITK,hjmjohnson/ITK,richardbeare/ITK,fuentesdt/InsightToolkit-dev,eile/ITK,spinicist/ITK,biotrump/ITK,eile/ITK,malaterre/ITK,fbudin69500/ITK,rhgong/itk-with-dom,GEHC-Surgery/ITK,LucHermitte/ITK,fbudin69500/ITK,hendradarwin/ITK,zachary-williamson/ITK,heimdali/ITK,Kitware/ITK,zachary-williamson/ITK,heimdali/ITK,eile/ITK,malaterre/ITK,biotrump/ITK,blowekamp/ITK,BRAINSia/ITK,blowekamp/ITK,hjmjohnson/ITK,eile/ITK,stnava/ITK,hjmjohnson/ITK,BlueBrain/ITK,msmolens/ITK,atsnyder/ITK,richardbeare/ITK,LucHermitte/ITK,stnava/ITK,rhgong/itk-with-dom,BRAINSia/ITK,atsnyder/ITK,fuentesdt/InsightToolkit-dev,InsightSoftwareConsortium/ITK,eile/ITK,jmerkow/ITK,ajjl/ITK,spinicist/ITK,msmolens/ITK,rhgong/itk-with-dom,InsightSoftwareConsortium/ITK,biotrump/ITK,stnava/ITK,LucHermitte/ITK,InsightSoftwareConsortium/ITK,msmolens/ITK,biotrump/ITK,thewtex/ITK,atsnyder/ITK,vfonov/ITK,atsnyder/ITK,fedral/ITK,BRAINSia/ITK,hendradarwin/ITK,BlueBrain/ITK,BRAINSia/ITK,eile/ITK,biotrump/ITK,msmolens/ITK,fedral/ITK,PlutoniumHeart/ITK,rhgong/itk-with-dom,vfonov/ITK,eile/ITK,fuentesdt/InsightToolkit-dev,LucasGandel/ITK,BlueBrain/ITK,LucHermitte/ITK,LucHermitte/ITK,blowekamp/ITK,spinicist/ITK,rhgong/itk-with-dom,malaterre/ITK,msmolens/ITK,fedral/ITK,hendradarwin/ITK,stnava/ITK,Kitware/ITK,blowekamp/ITK,zachary-williamson/ITK,atsnyder/ITK,blowekamp/ITK,richardbeare/ITK,rhgong/itk-with-dom,thewtex/ITK,jmerkow/ITK,fbudin69500/ITK,jcfr/ITK,msmolens/ITK,jcfr/ITK,zachary-williamson/ITK,biotrump/ITK,BlueBrain/ITK,GEHC-Surgery/ITK,hinerm/ITK,stnava/ITK,vfonov/ITK,biotrump/ITK,eile/ITK,PlutoniumHeart/ITK,hinerm/ITK,hinerm/ITK,biotrump/ITK,paulnovo/ITK,stnava/ITK,heimdali/ITK,vfonov/ITK,Kitware/ITK,heimdali/ITK,stnava/ITK,PlutoniumHeart/ITK,LucasGandel/ITK,atsnyder/ITK,paulnovo/ITK,InsightSoftwareConsortium/ITK,hinerm/ITK,msmolens/ITK,thewtex/ITK,jcfr/ITK,malaterre/ITK,ajjl/ITK,LucHermitte/ITK,GEHC-Surgery/ITK,msmolens/ITK,heimdali/ITK,PlutoniumHeart/ITK,fbudin69500/ITK,vfonov/ITK,malaterre/ITK,malaterre/ITK,Kitware/ITK,spinicist/ITK,ajjl/ITK,jmerkow/ITK,zachary-williamson/ITK,jmerkow/ITK,spinicist/ITK,vfonov/ITK,jcfr/ITK,thewtex/ITK,hendradarwin/ITK,jcfr/ITK,malaterre/ITK,hendradarwin/ITK,ajjl/ITK,paulnovo/ITK,atsnyder/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,fedral/ITK,paulnovo/ITK,heimdali/ITK,BlueBrain/ITK,BRAINSia/ITK,blowekamp/ITK,vfonov/ITK,LucHermitte/ITK,hjmjohnson/ITK,BlueBrain/ITK,GEHC-Surgery/ITK,richardbeare/ITK,hinerm/ITK,LucasGandel/ITK,richardbeare/ITK,zachary-williamson/ITK,eile/ITK,fuentesdt/InsightToolkit-dev,LucasGandel/ITK,hinerm/ITK,hinerm/ITK,hendradarwin/ITK,rhgong/itk-with-dom,fuentesdt/InsightToolkit-dev,richardbeare/ITK,ajjl/ITK,zachary-williamson/ITK,LucasGandel/ITK,jmerkow/ITK,atsnyder/ITK,thewtex/ITK,BRAINSia/ITK,jmerkow/ITK,jmerkow/ITK,fbudin69500/ITK,ajjl/ITK,paulnovo/ITK,malaterre/ITK,malaterre/ITK,ajjl/ITK,paulnovo/ITK,fuentesdt/InsightToolkit-dev,Kitware/ITK,spinicist/ITK,hinerm/ITK,BlueBrain/ITK,Kitware/ITK,GEHC-Surgery/ITK,thewtex/ITK,ajjl/ITK,paulnovo/ITK,hinerm/ITK,fuentesdt/InsightToolkit-dev,blowekamp/ITK,heimdali/ITK,jmerkow/ITK,fbudin69500/ITK