Cpuset 1.6 - Dual Python 2/3 compatibility

This release makes cpuset compatible with Python 2 and 3 with help of Python-Future module.

Maintenance release

Following fixes have been merged into this update:

• Adapt to cpuset cgroup controller mount type
• Handle both new and unknown priority policy codes gracefully
• Deal with process names containing whitespace
• URLs updated after project repository migration
• Various typo fixes