added useDynLib entry in NAMESPACE for attempting to satistfy R package builder on r-forge.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/abernethy@69 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
changed faulty useDynLib syntax.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/abernethy@70 edb9625f-4e0d-4859-8d74-9fd3b1da38cb