1.6.1

New in version 1.6.1:

• fix fft imports in newer versions of numpy
• other bug fixes

1.6

New in version 1.6:

• Python 3 support (single code base used for Python 2 and 3)
• bug fixes
• disable parallel computiation by default on non-Posix systems
  (set pacal.params.parallel=True to enable)
• this is the last version of PaCal with support for Python 2