Merge pull request #16 from mihalis68/master

stop vbox_create getting errors from vbox
Modify Vagrant based install to use generic setup scripts
scripts should be executable
provide an example proxy setup
better comments
use CURL method to allow overriding in single place in proxy settings
even more comments
use (possibly null) central definition for proxy
fix ssh command in non-vagrant case
use (possibly null) central proxy definitions
use (possibly null) centralised proxy definitions including a definition for CURL
fix typo, missing close double quote
use the example of a proxy on the hypervisor
respect the (possibly null) proxy setting
Further fixes for generic setup scripts to support Vagrant
still have to use cobbler account and sudo as far as I can see
document proxy support in chef-bcpc
Merge branch 'master' of https://github.com/bloomberg/chef-bcpc
remove mentions of squid for now, it is not necessary, may be confusing. Explain more about using a local proxy, especially how to fix DNS errors for non-public proxies if specified by hostname
further minor comments about proxy support