[haw-info] Corrected link for the Historians Against the War conference

"Clarification," as the New York Times calls them:  In a Historians Against the War message that I sent out this afternoon, the link to the web site of the April 5-7 HAW conference in Baltimore was defective.  This time it should work: 
http://www.historiansagainstwar.org/conf2013.  Apologies to anyone who tried it earlier.  Jim O'Brien, co-chair of HAW