Minor optimization for persistent connections in Database_MySQL
Minor optimization for persistent connections in Database_MySQL

16nsk/kohana,qianzy96/kohana,ryross/konfig_test,mattwadey/kohana,madeofpeople/latticeFolio,kebot/GiBeans,kohana/kohana,driutheman/kohana,zhangjingpu/kohana,yeysman/kohana,ajose1024/kohana,Konro1/pms,dreamsxin/kohana,web-player/kohana,madeofpeople/latticeFolio,JanvanCasteren/kohana,exlant/kohana,madeofpeople/latticeFolio,OpenBuildings/jam-resource,gartz/KohanaCV,manyahin/moviestest,exlant/kohana,gold3bear/kohana,jellycheng/kohana,driutheman/kohana,anhnt0212/kohana,enov/Aurora-QA,acoulton/slowtask-demo