Need host to upload to

Hi,

I use debian-package-builder-plugin to build the same src on 2 debian version: 7.8 and 8
The project is an multi-configuration project, so it's the same configuration on twice jenkins.
dupload : 2.7.0 twice
Jenkins 2.0 twice

but on wheezy dupload return:
dupload fatal error: Need host to upload to. (See --to option or the default_host configuration variable)
at /usr/bin/dupload line 142

Start at the plugin's invocation of dupload and compare the Jenkins multi-configuration jobs for Debian 7.8 and 8. Check how the upload host is supplied, including dupload's --to option and default_host configuration. Done means both configurations pass a host to dupload without the reported fatal error.

Written by the indexing model from the issue text.