With my hudson.ramfelt.se server, i have several nodes contributed by different
persons and some of them are not properly setuped for releasing hudson plugins.
ie, they havent added the subversion credentials to the subversion cache (not
Hudson's svn credentials). To do that the user must run "svn -list
https://hudson..." (as discussed at http://wiki.hudson-
ci.org/display/JENKINS/Hosting+Plugins)

I have jobs that are being built by two nodes, but it is only one that I know
have done the "svn -list". Therefore I would like to specify what node I want
the release to be done on. Also, I would like to be certain that it will be
released by a specific user and not the user that is running the node.