support for havana release.

Hi, 

I know this cookbook disabled on rcbops/chef-cookbooks. but I completely deployed havana keystone 2013.2.2 + swift 1.10.0 with rcbops/chef-cookbooks and rcbops-cookbooks/swift .

I wrote blog article on this URL (sorry japanese only)
http://jedipunkz.github.io/blog/2014/03/16/rcbops-chef-cookbooks-keystone-havana-swift-1-10-0.deploy/

so I modified only 1 line (templates/default/proxy-server.conf.erb) and I could deploy swift 1.10.0.

Thanks from Tokyo.