(29 May 1997) STORYLINE: T/I: 10:13:06 9722 Engelbert Humperdinck / Beirut / May 24 / ENT 1 Engelbert brings healing music to Beirut It was a part of Beirut that echoed to the sounds of bullets and bombs throughout much of the city's 15 year civil war. But the notorious Qarantina district, scene of some of the worst fighting in the bloody war, had a more pleasant soundtrack this weekend. Show-casing a new era of peace in once war-torn Lebanon, Engelbert Humperdinck thrilled a sell-out crowd in