When HyPerCol::ensureDirExists creates a new directory, give it permissions drwxr-x--- instead of drwx------
When HyPerCol::ensureDirExists creates a new directory, give it permissions drwxr-x--- instead of drwx------

git-svn-id: 602a26e73ae9f2a14e2bb95676f2e137fcc39919@10108 7c0444ca-5550-0410-9008-faecdbe78eb5

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