Release Name: beta 0.41

Feature and bug fix release

New Features:
1) Permutation-based correction for multiple comparisons
2) Weight normalization
3) New property: gateway coefficient
4) Choice for (density thresholding) to either (i) use the same weight threshold across participants (may result in different densities) or (ii) force each network to be the same density (weight threshold may be different)
5) Automatic naming if the user does not provide an output name

Bug Fixes/Improvements
1) Improved speed/accuracy of density thresholding procedure
2) Separated testing of several node-specific properties and the respective network-wide (mean) property (e.g., node strength and total node strength)
3) Minor bugfixes