Remove AWS Region from Knox config
Don't add region if US Standard (us-east-1)
Convert us-east-1 to us-standard just for knox
Don't encode uri's for knox
Merge pull request #26 from bcoe/fix-knox-uri-encoding

Don't encode uri's for knox
Merge pull request #25 from bcoe/remove-aws-region-from-knox-config

Knox wants AWS region us-standard instead of us-east-1
fixed version #.
Remove knox, use aws-sdk for s3 too.
Replace other places to use aws-sdk rather than knox
Fix aws path
Support local worker mode
support specify the remote path for each thumbnail