Unwrap logger line in box/../jenkins.sh

Looks like a vim-typo.
Use fog_credentials.rb for VSE

I missed this in 1b88aa3e35631030d39f42ea2f1da81c754c9580.
Refactor jenkins.sh for Carrenza

To make it clearer that it does both "box" and "net". I've also moved
`fog_credentials` and refactored some of the Carrenza specific information
out of it so that we can re-use it.
Remove vcloud-net-spinner config and script

This wasn't used; we're using vcloud-edge_gateway instead.
Simplify vcloud README

We shouldn't need to know about the guys now that we definitely have a
Jenkins job which handles both "net" and "box".
Merge pull request #46 from alphagov/vcloud_fixup

vCloud fixups (fix net creds, refactor scripts and docs, remove old)