Document versioning fails about monstache

[DaveDelphia]

Figured it out. After my Version changes the code was still using "NewBulkUpdateRequest()" which caused elastic to throw the Update error.

Side note, to get the versioning matching our mongo timestamp I needed to do something like this because we had multiple changes recorded within the same second on some events:
req.Version(int64(input.Timestamp.T)<<32 | int64(input.Timestamp.I))

I also noticed that elastic does some rounding when displaying the version number. For example:
I send this: 7384502911721537553
and elastic shows this in kibana: 7384502911721538000

Despite the rounding display issue, it looks like the versioning is working because 7384502911721537554 resulted in the document getting indexed.