RFC 41: rename OGR 'DODS' --> 'OGR_DODS' and 'GRASS' -> 'OGR_GRASS' per RFC 46

git-svn-id: https://svn.osgeo.org/gdal/trunk@27597 f0d54148-0727-0410-94bb-9a71ac55c965
Merge branch 'trunk' into trunk_mingw