Turn on TLS cert generation by default

Signed-off-by: Aanand Prasad <aanand.prasad@gmail.com>
Update VBOX_VERSION to 4.3.18

https://www.virtualbox.org/wiki/Changelog
Merge pull request #563 from aanand/turn-on-tls

Turn on TLS and cert generation by default
Merge pull request #567 from rogeriopradoj/patch-1

Update VBOX_VERSION to 4.3.18
Bump to version 1.3.0

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Merge pull request #566 from bfirsh/ship-1.3.0

WIP: Ship 1.3.0
Update README to 1.3.0 (since we missed this in #566)
Automount of folders site and data
Adding boot2docker.iso.gz
Changed uid and guid in automounted folders to user root and www-data
Update iso
Update iso with newer linux kernel
Merge branch 'master' of github.com:Zookal/boot2docker

Conflicts:
	build.md