By my reading of the semantic versioning spec, the sense of the comparison
of the number of prerelease version segments has to be reversed when one
of those numbers is zero.
In other words, zero prerelease segments takes precedence over any nonzero
number, but any nonzero number takes precedence over any lower nonzero
number.
Example given in the specification:
1.0.0-alpha < 1.0.0-alpha.1 < 1.0.0-alpha.beta < 1.0.0-beta <
1.0.0-beta.2 < 1.0.0-beta.11 < 1.0.0-rc.1 < 1.0.0.
I had two failing test cases in foundation-test; in one case, the blessed
output seemed to be wrong, whereas the other case made this fix necessary.
The tests always fail for me the first time I run them because this folder
doesn't exist. This adds a dummy file, traditionally called .gitkeep, so
that git will create the folder on checkout.
