[COOK-3689] Fix warnings about resource cloning

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Version bump to v2.3.4
Version bump to v2.3.5
[COOK-3025] Adding support for per-repo proxies

Signed-off-by: Sean OMeara <someara@opscode.com>
Version bump to v2.4.0
Version bump to v2.4.1