Merge pull request erlcloud#595 from hmartel/list_hards

Add erlcloud_kinesis:list_shards/1|2|3

address missing comment

Merge pull request erlcloud#589 from egobrain/feature/lambda-retry

Retry lambda call in case of x-amz-function-error exists

bump eini

Guardduty and minor things

config

ddb2 per_request, s3 listings, etc

new lhttpc 1.6.2