run-tests: skip threading for a single test
Threading is incompatible with most Python debuggers,
which makes debugging run-tests.py a real pain.
If there is only one test to run, skip using a thread for it.
Note that --debug is not compatible with debugging tests,
since it bypasses the output handling, which is where
much of the excitement is.
sslutil: fix reversed logic (
issue5034)
installer: add windows application version number to inno installer script
This addition to the inno installer script means that the windows uninstaller
registry key “DisplayVersion" is set to the application version number and
will show in Add/Remove Programs.