replace InvertibleOperatorMixin with InversionEnabler; move...

replace InvertibleOperatorMixin with InversionEnabler; move PowerSpectrum-related functionality out of Field
1 job for nifty2go in 4 minutes and 22 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #304133
test_min

00:04:22

71.0%