European shares rise sharply on strong earnings

* FTSEurofirst 300 rises 1.3 pct * Miners rise as gold hits $1,500, dollar weakens * L'Oreal up on results, techs rise on Intel * For up-to-the-minute market news, click on [STXNEWS/EU] By Brian Gorman LONDON, April 20 (Reuters) - European shares rose...