changed check headed for kernel files.  kernels can be used for networks of arbitrary size.
changed check headed for kernel files.  kernels can be used for networks of arbitrary size.

git-svn-id: 602a26e73ae9f2a14e2bb95676f2e137fcc39919@3744 7c0444ca-5550-0410-9008-faecdbe78eb5

dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV