+Nose Multiprocess Plugin
+The nose cov plugin partially works with the nose multiprocess plugin.
+The nose multiprocess plugin does not join with its child processes so nose cov plugin has coverage
+measured but can't merge coverage results and report them.
+Work around by using cov plugin and multiprocess plugin together to run tests, note coverage report
+from this command will be incorrect::
+ nosetests --with-cov --processes=4 tests/
+After there will be coverage data files for the main nose process and each subprocess::
+Tell coverage to merge coverage results into one coverage data file::
+Tell coverage to report::