BUG: don't use double underscore, which is reserved in C++
BUG: don't use double underscore, which is reserved in C++

Change-Id: I1637ef51be8804f3a6a46efd40536858741d8ba7

hjmjohnson/ITK,fbudin69500/ITK,BRAINSia/ITK,stnava/ITK,thewtex/ITK,hjmjohnson/ITK,Kitware/ITK,Kitware/ITK,hjmjohnson/ITK,richardbeare/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,hjmjohnson/ITK,thewtex/ITK,LucasGandel/ITK,stnava/ITK,Kitware/ITK,malaterre/ITK,Kitware/ITK,vfonov/ITK,stnava/ITK,vfonov/ITK,stnava/ITK,BRAINSia/ITK,spinicist/ITK,spinicist/ITK,Kitware/ITK,thewtex/ITK,blowekamp/ITK,vfonov/ITK,fbudin69500/ITK,richardbeare/ITK,fbudin69500/ITK,stnava/ITK,thewtex/ITK,vfonov/ITK,stnava/ITK,spinicist/ITK,spinicist/ITK,BRAINSia/ITK,malaterre/ITK,blowekamp/ITK,LucasGandel/ITK,richardbeare/ITK,stnava/ITK,blowekamp/ITK,richardbeare/ITK,hjmjohnson/ITK,thewtex/ITK,spinicist/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,blowekamp/ITK,malaterre/ITK,LucasGandel/ITK,vfonov/ITK,hjmjohnson/ITK,InsightSoftwareConsortium/ITK,blowekamp/ITK,stnava/ITK,BRAINSia/ITK,spinicist/ITK,BRAINSia/ITK,fbudin69500/ITK,BRAINSia/ITK,Kitware/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,hjmjohnson/ITK,stnava/ITK,spinicist/ITK,vfonov/ITK,blowekamp/ITK,fbudin69500/ITK,LucasGandel/ITK,malaterre/ITK,vfonov/ITK,vfonov/ITK,thewtex/ITK,LucasGandel/ITK,InsightSoftwareConsortium/ITK,blowekamp/ITK,malaterre/ITK,LucasGandel/ITK,fbudin69500/ITK,malaterre/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,vfonov/ITK,malaterre/ITK,BRAINSia/ITK,malaterre/ITK,malaterre/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,blowekamp/ITK,LucasGandel/ITK,LucasGandel/ITK,richardbeare/ITK,richardbeare/ITK