add boot output to serial console and then autologin
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