don't try allocating a port to upload a docs release to s3

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)

(cherry picked from commit e0af429a2acd7681f423ca29ff88b60d9bf2450f)
fixed broken link to chef community site
(cherry picked from commit 086b3208ea0f152f5c9501805fd0d8d1c95c7aad)

Docker-DCO-1.1-Signed-off-by: Roland Moriz <rmoriz@users.noreply.github.com> (github: SvenDowideit)
Development docs warning for beta-docs.docker.io

Update: Fix alignment issues of the "warning" block.

Docker-DCO-1.1-Signed-off-by: O.S. Tezer <ostezer@gmail.com> (github: ostezer)

Docker-DCO-1.1-Signed-off-by: O.S.Tezer <ostezer@gmail.com> (github: SvenDowideit)

(cherry picked from commit 9d38fd0eefb2df0bf087a67fad2ad852f28e2e96)
make the non-release doc warning conditional and add version info

use the beta-warning area to tell the user what VERSION of docker, git
branch, and links to the official release version docs are.

requires / extends PR #5272

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)

(cherry picked from commit dc982d3053bf46e03ad27c29d4662a9d5ba5e819)
Update link to interactive tutorial
(cherry picked from commit 6e6b8b69cdac5154afa823255252bca5c4890c6e)

Docker-DCO-1.1-Signed-off-by: Sindhu S <sindhus@live.in> (github: SvenDowideit)
Update link to interactive tutorial
(cherry picked from commit 81477a204f910fb5ce518a62c64047a0aa9ce017)

Docker-DCO-1.1-Signed-off-by: Sindhu S <sindhus@live.in> (github: SvenDowideit)