Fixes bug 963600 - add final beta support

* Add version_build to releases_raw
* Add version '99' for final beta

Kinda messy bit of work here. I am not very happy with it. 

Basically, to start tracking builds, we have to change all of the aggregations upstream. This is a compromise and just fudges the beta version to 99 for now. 

Ultimately, what we need to do is have a composite product_version, and a build information table that groups builds into product versions, including non-unique buildids for these crossover beta and release builds.