Teach how to reverse port forwarding.

This instructs users how to reverse "Port Forwarding On Steroids" if
need be without having to consult the VBox documentation.
Merge pull request #371 from nathanleclaire/reverse_port_steroids

Teach how to reverse port forwarding.
Remove the boot2docker script, and update the docs

With the new tool's usage details.
Merge pull request #372 from SvenDowideit/remove-script-add-docs

Remove the boot2docker script, and update the docs
add boot output to serial console and then autologin
IANA allocated Docker port: 2375

2375/2376 are assigned:
http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=docker

https://github.com/dotcloud/docker/issues/1440
Merge pull request #378 from SvenDowideit/iana-port-change

IANA allocated Docker port: 2375
Remove the boot2docker script, and update the docs

With the new tool's usage details.
add some not yet tested docs to share a volume container with samba
Merge pull request #376 from SvenDowideit/serial-console

add ttyS0 to inittab
Merge pull request #375 from SvenDowideit/share-container-volumes

Share container volumes
releasing version 0.12.0
highlight that the Docker port has changed to 2375
Merge pull request #379 from SvenDowideit/stage-0.12.0

Stage 0.12.0
docker docker "typo" fixed
Merge pull request #380 from mattes/patch-1

docker docker "typo" fixed in README
make sure that we know what version of docker was downloaded in the automated build log
Merge pull request #382 from SvenDowideit/add-docker-version-to-build-log

make sure that we know what version of docker was downloaded in the auto...
a little info about the difference betweek 0.9 and 0.12
Merge pull request #386 from SvenDowideit/hints-to-add-userdata.tar

a little info about the difference between 0.9 and 0.12