In NAMESPACE: export now also contains fusesma.ranges and fuserouting.ranges

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-hydro@174 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Now fusesma is fully compatible with HydroMAD (thanks to Joseph Guillaume)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-hydro@175 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Now fuserouting is fully compatible with HydroMAD (thanks to Joseph Guillaume)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-hydro@176 edb9625f-4e0d-4859-8d74-9fd3b1da38cb