DBRef : add a constructor that does't require to know about a parent object, a field name and a database (!).  Not sure if the resultant object is useful in general, but is certainly serializable.
DBRef : add a constructor that does't require to know about
a parent object, a field name and a database (!).  Not sure
if the resultant object is useful in general, but is certainly
serializable.

Also some reformatting of the code

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