By Nidal al-Mughrabi and Jeffrey Heller GAZA/JERUSALEM Thu Jul 10, 2014 8:24pm EDT (Reuters) – At least 78 Palestinians, most of them civilians, have been killed in Israel’s Gaza offensive, Palestinian officials said on Thursday as militants in the enclave kept up rocket attacks on Tel Aviv, Jerusalem and other cities. As Israeli officials seemed to hint at a possible invasion by ground forces, eight members of one family, including five children, were killed in […]