Add support for multiple datasets, issue 119


git-svn-id: svn+sshtunnel://coge.iplantcollaborative.org/storage/SVN.d/CoGe@946 aead6680-5d07-0410-860c-d65e5a4cd256
Added permissions check


git-svn-id: svn+sshtunnel://coge.iplantcollaborative.org/storage/SVN.d/CoGe@947 aead6680-5d07-0410-860c-d65e5a4cd256
Added feature type tracks


git-svn-id: svn+sshtunnel://coge.iplantcollaborative.org/storage/SVN.d/CoGe@948 aead6680-5d07-0410-860c-d65e5a4cd256