Add _id field to our LS question item as required by pymongo
Add _id field to our LS question item as required by pymongo

pymongo sets '_id' field at the client side before sending it to the server, it
modifies the documents "in place" hence add '_id' field to our item, without
this we get below error,

KeyError: 'LokSabhaQuestion does not support field: _id'

References:
https://stackoverflow.com/questions/35191042/get-inserted-ids-after-failed-insert-many/35232197#35232197
http://api.mongodb.com/python/current/faq.html#why-does-pymongo-add-an-id-field-to-all-of-my-documents

Signed-off-by: Arun Siluvery <66692e34e783869a1e5829b4c5eee5e1a471c4f7@gmail.com>

mthipparthi/parliament-search