Mongodb database references without DBRefs, and automatic resolution of them.

You pass in a *mgo.Database (db) and a query result (v) to

resolver.Resolve(db, v, nil)

And this package will resolve all "foreign key references" which value is an instance of bson.ObjectId, and which key has the form of:

"_collName"
// or
"_collName_customFieldName"	// In case of there are more than one reference to a given collection in a document.

The value can be a single bson.ObjectId or a []bson.ObjectId.