added tests and refactored incorrect docstrings
fix multiprocessing tests under windows
we don't want tests to be covered
Merge pull request #451 from niphlod/fix/tests

added tests and refactored incorrect docstrings
Merge pull request #452 from niphlod/fix/tests_mp

fix multiprocessing tests under windows
Merge pull request #453 from niphlod/fix/coverage_ini

we don't want gluon/tests to be covered