Liquor was flowing and drugs were abundant at the Miami mansion where Barron Hilton was allegedly attacked last week. But now, one partygoer has come forward to claim that houseguest Lindsay Lohan not only did not partake, but stayed barricaded in her room all night while the debauchery went down. New York Observer writer Lindsay MaHarry, a friend of Hilton's alleged attacker Ray LeMoine, was inside the bash, and offered up her version of