add repo for R sp; cleanup
add repo for R sp; cleanup

OSGeo/OSGeoLive,astroidex/OSGeoLive,astroidex/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,astroidex/OSGeoLive,astroidex/OSGeoLive,OSGeo/OSGeoLive,astroidex/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,kalxas/OSGeoLive,astroidex/OSGeoLive,OSGeo/OSGeoLive,OSGeo/OSGeoLive