GLOBAL MARKETS-Europe holds on to ECB hope, shrugs off China slump

* European shares hit 7-yr high, bond yields new lows* Europe gears up for ECB, Greek election* Chinese shares plunge 7.7 percentBy Jamie McGeeverLONDON, Jan 19 (Reuters) - European stocks and bonds rose on Monday as investors shrugged off the steepest fall in Chinese shares for over six years and bet the European Central Bank will unveil a bond-buying economic stimulus package later this week.Ant