I was looking into the `get` command, and got tripped up by the
`Version` variable. It was unclear to me what Version represents, since
it's called REVISION when doing e.g., `helm list`.
But even after knowing this, it was not very clear to me why we
(implicitly) set the Version variable to 0 but never seem to use it.
`mhickey` explained to me on Slack that this gets the latest revision of
the release. Makes sense, but I added a comment about that too, to
clarify.
Signed-off-by: Andreas Lindhé <andreas@lindhe.io>