update docker push to use [====>    ]
associate swapping the built docker binary with building the binary, rather than a note in building the docs
add a direct example for changing the cmd that is run
add example for docker rmi, and explain the need to remove all references (tags) to and image before its garbage collected :)
Corrected typo (resdis -> redis)
Merge pull request #3153 from vieux/improve_docker_push_display

Update docker push to use new display
Use https to get the install script
Merge pull request #3162 from SvenDowideit/docker-commit-example-change-CMD

add a direct example for changing the cmd that is run
Merge pull request #3165 from SvenDowideit/cmd-rmi-example

add example for docker rmi, and explain the need to remove all references (tags) to and image before its garbage collected :)
Merge pull request #3167 from qbrossard/patch-1

Corrected typo (resdis -> redis)
Merge pull request #3161 from SvenDowideit/make-replace-docker-binary-note-more-obvious

associate swapping the built docker binary with building the binary, rather than a note in building the docs
Merge pull request #3174 from richo/features/https_install_script

Use https to get the install script