Previously, we would compute a version for a build by taking the last
relaesed bversion and then increment the patch number. We did this
because during pre 1.0 milestones, we would use the minor version to
say that there had been a "breaking change" and use the patch version
to mean there had been fixes or new features.
For packages that are 1.0 or later, we are now going to bump the minor
version per release and will use the patch version just for cases
where we do one off hot fixes.
This change updates our version generation logic to be in line with
this new plan.
0a2384d175