to keep MatrixDB::update_row() consistent with other interface, "row" type is revised from reference to shared_ptr, btw, function "row_without_cache" is removed as not used.
to keep MatrixDB::update_row() consistent with other interface,
"row" type is revised from reference to shared_ptr,
btw, function "row_without_cache" is removed as not used.

izenecloud/izenelib,izenecloud/izenelib,pombredanne/izenelib,pombredanne/izenelib,pombredanne/izenelib,izenecloud/izenelib,izenecloud/izenelib,pombredanne/izenelib