Added -lgdal to build and fixed -lpv reference
Added -lgdal to build and fixed -lpv reference

git-svn-id: http://svn.code.sf.net/p/petavision/code/sandbox@1878 7c0444ca-5550-0410-9008-faecdbe78eb5

Former-commit-id: 4f72325c02c6ee7acc67025818ea274e8b49ac6e
dpaiton/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,dpaiton/OpenPV,PetaVision/OpenPV,PetaVision/OpenPV