Streams 105

STREAMS-105 | Ensured that the user_mentions entries are correctly structured and that the activity object has the correct ID and content
Since there is no 100% completely accurate way to assert the IDs match the handles, then I would say create a different object for each and let a downstream processor merge them by checking twitter API.  Either that or completely disregard one or the other.  

You might want to discuss this on the list to get other opinions.