create new S3 bucket without a dot in the name (and move all media)

[fibasile]

app_1 | [fog][WARNING] fog: the specified s3 bucket name(fablabs.io) contains a '.' so is not accessible over https as a virtual hosted bucket, which will negatively impact performance. For details see: http://docs.amazonwebservices.com/AmazonS3/latest/dev/BucketRestrictions.html

See https://github.com/fog/fog/issues/3318