Add contrib/man to our generated deb

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
docker save: fix filemode permissions

currently the files created are not readable. This makes the files and
directories permissions more sane.

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Change shm mode to 1777

Fixes #5126
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Revert "Support hairpin NAT without going through docker server"

This reverts commit b39d02b611f1cc0af283f417b73bf0d36f26277a.

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Fix libcontainer network support on rhel6

It seems that netlink in older kernels, including RHEL6, does not
support RTM_SETLINK with IFLA_MASTER. It just silently ignores it, reporting
no error, causing netlink.NetworkSetMaster() to not do anything yet
return no error.

We fix this by introducing and using AddToBridge() in a very similar manner
to CreateBridge(), which use the old ioctls directly.

This fixes https://github.com/dotcloud/docker/issues/4668

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
Update mac.rst to add homebrew instructions.

Explain how to install boot2docker and docker by using homebrew.

Docker-DCO-1.1-Signed-off-by: Jonathan Pares <jonathanpa@users.noreply.github.com> (github: jonathanpa)
add some more text to the cli docs

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)
Merge pull request #5109 from jonathanpa/master

Update mac.rst to add homebrew instructions.
Merge pull request #5050 from SvenDowideit/add-some-words-to-cli

add some more text to the cli docs
Merge pull request #5133 from crosbymichael/revert-hairpin

Revert "Support hairpin NAT without going through docker server"
Merge pull request #5115 from alexlarsson/fix-libcontainer-network-rhel6

Fix libcontainer network support on rhel6
Merge pull request #5131 from crosbymichael/shm-mode

Change shm mode to 1777
Merge pull request #5087 from vbatts/vbatts-save_permissions

docker save: fix filemode permissions
Merge pull request #5069 from tianon/hack-make-ubuntu-man

Add contrib/man to our generated deb