KHAN YOUNIS, Gaza Strip (AP) — Eman Hassan Lawwa was dressed in traditional Palestinian prints and Hikmat Lawwa wore a suit as they walked hand-in-hand past the crumbled buildings of southern Gaza in a line of other couples dressed in exactly the same way. The 27-year-old Palestinians were among 54 couples to get married Tuesday in a mass wedding in war-ravaged Gaza that represented a rare moment of hope after two years of devastation, death and conflict. “Despite everything that has happened,