Update ruby to 1.9.3-p547

* Updated .ruby-version for version managers
* Updated url's for ubuntu iso's (old-releases now)
* Converged on one ruby in the chef recipes

[#71367862]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Support deploying to a VPC on AWS.

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Merge pull request #113 from gajwani/aws_vpc

Support deploying to a VPC on AWS.
Install the ruby version that warden uses.
Merge branch 'ruby-p545' of https://github.com/sykesm/bosh-lite into sykesm-ruby-p545

Conflicts:
	site-cookbooks/bosh-lite/recipes/rbenv.rb
Merge branch 'sykesm-ruby-p545'
Adds IPTable entries for port forwarding inside the BOSH-lite [finishes #72378510].

Signed-off-by: Nikhil Gajwani <ngajwani@pivotallabs.com>