Consistent clients.

[DailyDreaming]

We seem to have a mix of clients imported from either the dss or dcplib. We should probably consolidate and use one set.

For example both:

from dcplib.aws.clients import logs

or

from dss.util.aws.clients import dynamodb as db

...are used in the DSS and we should probably import all of our clients from only one.

[chmreid]

While we're at it, we should probably check for boto3 clients too:

import boto3

client = boto3.client('dynamodb')