BUG: change acos to vcl_acos and ensure that the arguments is in [-1,1]
BUG: change acos to vcl_acos and ensure that the arguments is in [-1,1]

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