added s3 config load
added s3 config load

STSILABS/fda-sandbox,STSILABS/open-fda,STSILABS/fda-sandbox,STSILABS/open-fda,STSILABS/fda-sandbox,STSILABS/open-fda,STSILABS/fda-sandbox,STSILABS/fda-sandbox,STSILABS/open-fda,STSILABS/open-fda