An auction of items and documents from Holocaust victims was cancelled on Sunday, a day before it was scheduled to take place.   Before the cancellation, the International Auschwitz Committee (IAC) had urged the Felzmann auction house not to hold the event.  IAC Executive Vice President Christoph Heubner called the auction "cynical and shameless." Heubner said in a statement that the history of Holocaust survivors was "being exploited for commercial gain." "Documents relating to persecution and