Israel's government approved the Gaza ceasefire and hostage release deal early on Friday, setting the clock ticking on the first phase of an agreement that aims to end the two-year-old war. The agreement covers only an initial stage, including handing over hostages held in Gaza in exchange for Palestinian prisoners inside Israel, and a partial withdrawal of Israeli troops from positions in the enclave. Plenty of pitfalls remain with negotiators yet to resolve some of the thornier issues on which previous initiatives have foundered. Here are some of the details obtained by Reuters from the agreement as it was voted on by the Israeli government, and from Palestinian and Israeli sources: * The ceasefire begins once the agreement is approved...