added a ._apply method for the db as well
added a ._apply method for the db as well

Dcardcc/mongojs,JaKXz/promised-mongo,gordonmleigh/promised-mongo,saintedlama/mongojs,tapsboy/promised-mongo,beni55/mongojs,litixsoft/mongojs,PaulinePro/mongojs,kapetan/mongojs,octoblu/mongojs,mafintosh/mongojs,AMKohn/mongojs,Dcard/mongojs,lionvs/mongojs