Deploy multiple CoherenceBot clusters, one per major region

[PeterCiuffetti]

Set up Elastic Map Reduce clusters in the following regions:

• US,
• EU,
• Africa,
• South America
• Asia ...or some initial set of these. I will need to check which regions EMR is offered.

The number of URLs discovered within each of these regions will probably not be proportional, so US and EU might need more than one.

This will require coming up with a way to distribute the seed URLs to each cluster and avoid duplication.

And we will need a deploy mechanism so each cluster can be updated without too much hassle.

It will also require exporting results back to the centralized S3 bucket in us-east-2, so check that this path is achievable.

[PeterCiuffetti]

Marking this complexity M mainly because you know AWS is going to throw some funky shite at me dealing with cross-datacenter permissions.

[PeterCiuffetti]

We have clusters in US (Ohio), EU (Frankfort) and AP (Tokyo) and I have tested these with small seed lists.