run-tests: add a "--blacklist target" option to skip predefined test lists
Rely on a ConfigParser file, tests/blacklist, to define blacklist targets.
This allows exposing specific test suites for testing incomplete/particular
features, e.g. "run-tests.py --blacklist inotify-failures --inotify *"
<?xml version="1.0" encoding="{encoding}"?>
<feed xmlns="http://www.w3.org/2005/Atom">