Bump to version 0.8.0
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
be a little more explicit about what WORKDIR does

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Merge pull request #3916 from crosbymichael/bump_v0.8.0

Bump to v0.8.0
Merge branch 'release' into merge_release_v0.8.0

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Change version to v0.8.0-dev
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Merge pull request #3941 from crosbymichael/merge_release_v0.8.0

Merge release v0.8.0
Always download things over https

Docker-DCO-1.1-Signed-off-by: Joe Shaw <joe@joeshaw.org> (github: joeshaw)
Merge pull request #3938 from SvenDowideit/workdir-doc-tweak

be a little more explicit about what WORKDIR does
Merge pull request #3944 from joeshaw/patch-1

Always download things over https