rearranging order of operations for gauss2d weight init, separated pre and post number of orientations
rearranging order of operations for gauss2d weight init, separated pre and post number of orientations

git-svn-id: 602a26e73ae9f2a14e2bb95676f2e137fcc39919@3000 7c0444ca-5550-0410-9008-faecdbe78eb5

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