enriched ublas_ordering to solve problems with one1 and one2 for ublas
looked at ublas-banded format in detail:
-row_major is indeed the same as the lapack format
-The strides should now also be correct fur column_major,
but this is not important, since only row_major will work with lapack
-The macro BOOST_UBLAS_OWN_BANDED should not be defined (currently not checked),
since the corresponding format doesn't allow to define strides.