ReactiveMongo/ReactiveMongo — pull request #147 by neverov (2014-01-15 14:25:26+00:00)
Title: Getting files from gridfs returns files without uploadDate

I have a few uploaded to mongo files through gridFS like that:
```
{
"_id" : ObjectId("52d2660d5500001204a2aac0"),
"filename" : "sampleFile.jpg",
"chunkSize" : 262144,
"length" : 14498,
"uploadDate" : ISODate("2014-01-12T09:53:17.914Z"),
"contentType" : "image/jpeg"
}
```
All of them have their `uploadDate` property set to some valid time.
When I'm retrieving it inside the controller with
```
val gfs = new GridFS(db)
gfs.find(BSONDocument()).collect[List]() map {
case files: List[DefaultReadFile] =>
Ok(prettyPrint(obj("files" -> files.map(_.uploadDate))))
}
```
I get the following response:
```
{
"files" : [ null, null, null, null, null, null, null, null, null, null, null]
}
```
which is obviously wrong.