Added more metadata classifiers including all versions of python supported by psutil including python 3. This should make some difference when searching python 3 modules through pypi.
Added more metadata classifiers including all versions of python supported by psutil including python 3.
This should make some difference when searching python 3 modules through pypi.

ztop/psutil,ztop/psutil,ztop/psutil,ztop/psutil