Log Message:-----------support null items in arrays
Modified Files:-------------- Npgsql2/src/NpgsqlTypes: ArrayHandling.cs (r1.7 -> r1.8) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/ArrayHandling.cs?r1=1.7&r2=1.8)