Update vagrant base box and fix rundeck command line error

Hi,

Thanks for putting the box together.  This is just a quick fix to consume an available base box (didn't try and optimise, and it is a deprecated box...but it works), and also fix a command line issue with the provisioning that was preventing completion of setup. Should address issue #2.

Confirmed against Vagrant 1.4.3 and Rundeck 2.0.1-1.

Thanks,

Ben