1.5.0

New features

• S3 provider supports authentication with local AWS CLI profiles.
• S3 factory methods allow specifying session token (for STS temporary credentials).

Bugs fixed

• S3 Ls operation was returning it's own folder object in the list.
• S3 Ls was facing number parsing overflow on multi-gigabyte files.
• On some platforms hmac256 was not working resulting in failure to sign AWS requests.
• Multi-part uploads in S3 were sometimes not calculating chunk sizes properly.