ENH: Check system-installed vxl version.
ENH: Check system-installed vxl version.

Provide error message at compile time when the system installed
vxl version is too old.

The vxl version imported in ITKVNL module is dated at 2011-04-28.
Therefore system installed vxl version that is older than 2011-04-28
might not compatible with ITK ( VXL does not release frequently,
the most up-to-date release version v1.14.0 is actually quite old and
does not compile  with ITK).

Change-Id: Ic52d3d89d03af30b367b781f8d8487fa12cc71a6

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