Changed role used to a better named one

The policy on the new role is this:
`{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "dynamodb:GetItem",
        "dynamodb:BatchGetItem",
        "dynamodb:Query",
        "dynamodb:Scan",
        "dynamodb:DescribeTable",
        "dynamodb:ListTables",
        "dynamodb:PutItem",
        "dynamodb:BatchPutItem",
        "dynamodb:UpdateItem",
        "s3:Get*",
        "s3:List*"
      ],
      "Effect": "Allow",
      "Resource": [
        "arn:aws:dynamodb:us-west-2:005837367462:table/*",
        "arn:aws:s3:::sagebionetworks-interactome-abstracts"
      ]
    },
    {
      "Effect":"Allow",
      "Action":"sns:Publish",
      "Resource":[
        "arn:aws:sns:us-west-2:005837367462:abstracts_disliked",
        "arn:aws:sns:us-west-2:005837367462:abstracts_liked",
        "arn:aws:sns:us-west-2:005837367462:abstracts_req"
      ]
    }
  ]
}`


The policy could probably be written to be less wordy (Batch* and stuff) but oh well.

Basically to read the policy, action is what you can do on the resources. So if you add a new sns topic for the interactome to use, you will need to add it to this resource list.