cleanups to CXGN::Page::Session, removed unnecessary CXGN::VHost use
cleanups to CXGN::Page::Session, removed unnecessary CXGN::VHost use

git-svn-id: 3eecc177e40867771373f5667ac62c9887fe2feb@17451 b4ddb4e3-33f1-0310-aa89-e703427ae9b8

solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn