Missing deps

Implements feature to be used in builder as discussed
> I still don't understand the rationale. If koji has 1.0 twice, is that just builds and rebuilds at the
> same version or does that also include multiple architectures? If git, has 3.0 twice, is that just
> two branches in git with 3.0? And I guess with yum, 2.0 twice means multiple releases for the
> same upstream version, right?

Yes. Again the code highlighted is just mock'd up test data, I wouldn't base any specific analysis on those values.


> Does the "frequency" of a version appearing in a source indicate some level of stability, 
> popularity, maintenance level, or something else? Does the "frequency" of a version indicate 
> the same thing across koji, yum, and git?

It's just another metric / abstraction which provides some insight in the cross-referencing / analysis. We can always change the logic driving this statistic going forward (and perhaps ship additional ones such as 'latest_version_of', etc)