build prado urls (labels) from the configured labels

[alfredodeza]

Because it is a pain to make the labels match exactly in the url

[dmick]

I have a branch that may do this

[alfredodeza]

It shouldn't be absolute. We might have a use (I can't think of right now) were we want to match one label but provide more in jenkins (via prado).

I'm thinking an optional setting. It is a dict afterall so we can fallback.