Fix no http proxy case#1

Merged

stankevich merged 4 commits intovoxpupuli:masterfrom

Nov 2, 2012

Commits on Oct 17, 2012

If the proxy is unset then you cannot set http_proxy in the environment
Ashley Penney
committed

Commits on Oct 18, 2012

Allow more than one python::requirements to be used.
Ashley Penney
committed
Remove the directory part so it can actually write the file.
Ashley Penney
committed
Add app_interface.
Ashley Penney
committed