fix `hug me`

[Aidan Feldman]

Switching to the AWS SDK in #22 broke it.

me: charlie hug bomb
charlie: aidanfeldman: Error retrieving images: TimeoutError: Missing credentials in config

I didn't catch it because I tested locally, and it was presumably reading my local credentials.

[Bret Mogilefsky]

@dlapiduz wanted this assigned to him

[Diego Lapiduz]

creds for s3 were missing. it is good now.