changed dbget to get with a cast - added generics TODO item.
changed dbget to get with a cast - added generics TODO item.

wanggc/mongo-java-driver,kevinsawicki/mongo-java-driver,jyemin/mongo-java-driver,davydotcom/mongo-java-driver,kevinsawicki/mongo-java-driver,jyemin/mongo-java-driver,kevinsawicki/mongo-java-driver,kay-kim/mongo-java-driver,gianpaj/mongo-java-driver,rozza/mongo-java-driver,rozza/mongo-java-driver,wanggc/mongo-java-driver,jsonking/mongo-java-driver,jsonking/mongo-java-driver,PSCGroup/mongo-java-driver,davydotcom/mongo-java-driver