Fix incorrect CPU type on Ubuntu 12.10.
Merge pull request #117 from juliandunn/fix-ubuntu-cpu

Fix incorrect CPU type on Ubuntu 12.10.
Bash is dead, Long live Bash.

This adjusts the following

* Remove bash - no longer needed for vagrant
* Removes installing portsclean - as cleanup script does this
* Add a Freebsd i386 9.1 build config
Merge pull request #120 from petecheslock/kill-bash

Remove bash from FreeBSD boxes. Remove portsclean. Add i386 FreeBSD definition.
Allow building of i386 FreeBSD box provisionerless or with Chef.
Use correct sudoers changes for Ubuntu 12+.

In the veewee definitions, Ubuntu 10 and 11 use the common ubuntu
configuration which exempts the admin group. The Ubuntu 12 and 13
definitions don't use the common configuration, instead they use the sudo
group.

Set exempt sudo user based on lsb_release and handle sudoers NOPASSWD
config change correctly.
For all Ubuntu boxes, use @jon918's unified sudoers script from [GH98] rather than random variants.
Merge branch 'jcd/use-jon918-sudoers'