M4.7 quake jolts Kochi+   Chinese media casts Xi's audience with emperor in warm light+   FY 2010 tax-reform plan may be delayed until next week: Fujii+   Japan enters high-speed train sales race   Suspected Free Papua Movement leader killed by Indonesian police+   Boeing's 787 jetliner finally takes to the air   LEAD: Obama writes personal letter to N. Korea's Kim Jong Il: report+   Man given 20 yrs over arson-murder at Kobe dating club+   'Easing tension' seen in Korean Peninsula: China's Xi+   Report: NKorea presses for lifting of UN sanctions   Obama writes personal letter to N. Korea's Kim Jong Il: report+   Main events scheduled for Thursday, Dec. 17+   Man given prison terms on separate charges of murdering Filipino women+   Dollar stays firm in mid-89 yen ahead of Fed policy meeting+   AP source: Obama writes letter to NKorean leader   Drug-related violence, bombings kill 50 in Mexico   Baseball: Mets close to signing Igarashi: report+   Border stability to top China-Myanmar talks   AP source: Obama writes letter to NKorean leader   GM to repay $6.7 bil. to federal government by end of June+