added check to see if C compiler defines nan and inf
pad the masked region with nan
compute masked fraction and mask boundaries
add computation of perimeter/area statistic
save boundaries in map instance and return perimeter/area
make masked attribute private
add option to perform masking in place
added boundary property to ConvergenceMap
ignore mask when counting peaks
added maskedFraction property
skip masked areas when computing MFs
tight_layout()
recompute gradients after inplace masking
prevent smoothing and power spectrum of masked maps
ignore masked areas when computing the PDF
ignored masked areas when computing moments