first go at making the correlated noise generation use Hermitian symmetry to cut runtime by almost 50%
(#563)
improve docstring
(#563)
fixed a couple of array dimension product factors
(#563)
Revert "fixed a couple of array dimension product factors"

This reverts commit ea4c6119ae6117e639facba46903adecb044e213.
fixed use of rfft and irfft in CorrelatedNoise.__init__
(#563)
clarified comment
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Merge branch 'master' into #563
add clarifying comment
(#563)
also remove prpduct shape factor in rootps whitening
(#563)
made representation of PS in CAorrelatedNoise.__init__ consistent
(#563)
moved the normalization by 1/N^2 into the generation of the noise field
(#563)
localized change to just the half sized generation of the noise field via irfft2... still not working
(#563)
added a use_irfft option to applyTo... now testing
(#563)
added testing script, which allowed me to understand the issue
(#563)
fixed sqrt2 error
(#563)
minor whitespace edit
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put back the irfft stuff to being almost read to roll out, improved comments a bit, now need to implement fix at point of noise generation
(#563)
fixed doc error
(#563)
fixed doc error
(#563)
fixed doc minor
(#563)