Added test on number keys
Added test on number keys

louischatriot/nedb,ejok/nedb,ejok/nedb,lukasbestle/newdb,lseongjoo/nedb,zhangweis/nedb,louischatriot/nedb,lukasbestle/newdb,freakynit/nedb,zhangweis/nedb,lseongjoo/nedb,jedahan/nedb,jedahan/nedb,paulovieira/nedb,lukasbestle/newdb,paulovieira/nedb,freakynit/nedb,louischatriot/nedb