<oo-accept-node> make conf file parsing consistent

For some reason, we are using ParseConfig in ruby to parse config files,
though it is unsuited to the purpose. even more inexplicably, oo-accept-node
was rolling its own parser, and that broke in some obscure case. So for
consistency, this cargo-cults the ParseConfig code to do the parsing.
Merge pull request #2289 from sosiouxme/ooacceptnode

Merged by openshift-bot