Log Message:
-----------
Fix for string representation of some negative intervals. Thanks to Mathieu Fenniak for bashing out the issues.
Modified Files:
--------------
Npgsql2/src/NpgsqlTypes:
DateDatatypes.cs (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/DateDatatypes.cs.diff?r1=1.3&r2=1.4)