[PATCH 0 of 1] setup.py: fixing version info for Windows hg.exe (py2exe)

[Adrian Buehlmann]

See http://bitbucket.org/abuehl/thg-abuehl/downloads/hg-exe-properties-1.PNG
for a screenshot of an example of the properties of a hg.exe that was built with
the patch applied.

Non-release builds of hg.exe did not have any version info at all, because
py2exe could not parse version strings like '1.4.3+66-1b26e381233a'
(version strings like '1.4.3' were ok, so releases were not affected).