Dropping in a folder gives raw file object, should give all nested files object to onCreateFiles

[ziaulrehman40]

onCreateFiles gets called with a file object with only folder name and some other attributes, which is not useable(as far as i know).

If a folder is dropped, all files in the folder should be returned, or some other way user should at-least be able to process the folder for the upload.

[jlo-1]

Closing due to being fixed in #110