Log Message:
-----------
Support ISinglePhaseNotification to simplify some distributed transaction workflows
Modified Files:
--------------
Npgsql2/src/Npgsql:
NpgsqlResourceManager.cs (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlResourceManager.cs.diff?r1=1.4&r2=1.5)