Replaced original Debian 6 Squeeze 64-bit box...

...with new working Debian 6 Squeeze 32-bit box. Changed the follow in
the Vagrantfile to reflect change:

'debian6-squeeze' BECOMES 'debsqueeze32'
'http://www.emken.biz/vagrant-boxes/debsqueeze64.box' BECOMES
'http://mathie-vagrant-boxes.s3.amazonaws.com/debian_squeeze_32.box'