Log Message:-----------Fix time zone parsing bug reported in message 1005627. Now handle negative timezones correctly.
Modified Files:-------------- Npgsql2/src/NpgsqlTypes: DateDatatypes.cs (r1.8 -> r1.9) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/DateDatatypes.cs?r1=1.8&r2=1.9)
