Fix in psutil. Versions prior to 2.0.0 used different way to access informa...

Samo Penic

2016-05-17 9aa037e69aec3aaf1ea2defc8fd5a7ff9030905a

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Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.