Disabled username memory leak test for Windows which takes ages to complete because of WMI.
Disabled username memory leak test for Windows which takes ages to complete because of WMI.

git-svn-id: 9f18dd852162ff6c59c5533c0914e9cf81af9e7c@510 d8a29897-7e4b-0410-a74a-8bb4c295346f

elventear/psutil,elventear/psutil