COMP: Address new compiler warnings
COMP: Address new compiler warnings

ANTS/Utilities/antsSCCANObject.hxx:148:28: warning: '&&' within '||' [-Wlogical-op-parentheses]
      if ( ( x[ kk ] > 0 ) && ( signvec[ kk ] < 0 ) ||
           ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ ~~
ANTS/Utilities/antsSCCANObject.hxx:148:28: note: place parentheses around the '&&' expression to silence this warning
      if ( ( x[ kk ] > 0 ) && ( signvec[ kk ] < 0 ) ||
                           ^
           (                                       )

ANTS/Utilities/antsSCCANObject.hxx:2248:53: warning: '&&' within '||' [-Wlogical-op-parentheses]
  while(  deltaminerr > 1.e-10 && minerr > convcrit && ct < maxits || ct < 5 )
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ ~~
  while(  deltaminerr > 1.e-10 && minerr > convcrit && ct < maxits || ct < 5 )
                                                    ^
          (                                                       )

ANTS/Utilities/antsSCCANObject.hxx:2006:43: warning: unused parameter 'keeppos' [-Wunused-parameter]

fbudin69500/ANTs,acaprihan/Lungs,DaisukeMiyamoto/ANTs,stnava/ANTs,acaprihan/Lungs,fbudin69500/ANTs,DaisukeMiyamoto/ANTs,fbudin69500/ANTs,dawnsong/ANTs,stnava/ANTs,stnava/ANTs,DaisukeMiyamoto/ANTs,dawnsong/ANTs,fliem/ANTs,stnava/ANTs,acaprihan/Lungs,fliem/ANTs,fliem/ANTs,fliem/ANTs,DaisukeMiyamoto/ANTs,dawnsong/ANTs,DaisukeMiyamoto/ANTs,dawnsong/ANTs,DaisukeMiyamoto/ANTs,fbudin69500/ANTs,stnava/ANTs,dawnsong/ANTs,fliem/ANTs,dawnsong/ANTs,fbudin69500/ANTs,acaprihan/Lungs,stnava/ANTs,acaprihan/Lungs,fbudin69500/ANTs,fbudin69500/ANTs,dawnsong/ANTs,stnava/ANTs,fliem/ANTs,fliem/ANTs,DaisukeMiyamoto/ANTs,acaprihan/Lungs