Some aws implementations, for example the quobyte object storage, do not
support the v4 signing algorithm, but only v1.
This makes it possible to configure the signatureVersion.
The algorithm implementation was ported from d6c1be296e/botocore/auth.py (L860-L862)
which is used by the aws CLI client.
This fixes https://github.com/heptio/ark/issues/811.
Signed-off-by: Bastian Hofmann <bashofmann@gmail.com>
A blank line is necessary before starting a table with Jekyll. Fix it
here so when new versions are cut they render to HTML corectly.
Signed-off-by: Nolan Brubaker <nolan@heptio.com>