Implement new background adding of connections to maintain a "minimumIdle" level.
Implement new background adding of connections to maintain a "minimumIdle" level.

atschx/HikariCP,hito-asa/HikariCP,schlosna/HikariCP,squidsolutions/HikariCP,785468931/HikariCP,openbouquet/HikariCP,brettwooldridge/HikariCP,udayshnk/HikariCP,guai/HikariCP,brettwooldridge/HikariCP,kschmit90/HikariCP,yaojuncn/HikariCP,sridhar-newsdistill/HikariCP,mwegrz/HikariCP,nitincchauhan/HikariCP,barrysun/HikariCP,bobwenx/HikariCP,ams2990/HikariCP,Violantic/HikariCP,newsky/HikariCP,polpot78/HikariCP,zhuyihao/HikariCP,ligzy/HikariCP,junlapong/HikariCP,guai/HikariCP