SHTOOLS/SHTOOLS: Version 4.1

This version adds improved functionality to SHTOOLS and fixes a couple of minor bugs. In addition, this release will be the first where pre-built wheels for unix/macOS/windows will be distributed via PYPI.

• Added an optional argument lmax to SHCoeffs.from_array().
• Coefficients are zero-padded when lmax is greater than the maximum degree in SHCoeffs.to_array().
• The method pad() was added to the SHCoeffs class that zero pads or truncates the coefficients to a different lmax.
• Fixed the method SHCoeffs.from_file() such that the maximum spherical harmonic degree of the class is the maximum spherical harmonic degree of the coeffs (and not lmaxin as before).
• Fixed formatting issues with error messages in SHCoeffs.
• Removed print statements from the fortran code in BAtoHilm and BAtoHilmRohH that served no purpose.
• Fixed a bug in the argument order of the python wrappers of CilmPlusRhoDH and BAtoHilmRhoDH.
• Fixed the makefile to remove the dist directory during clean.
• Fixed a bug in the python routine cross_spectrum(), where the numpy arange function was incorrectly called.
• Fixed theSHWindow plotting methods to work when the number of rows is equal to 1.
• Conditional tests in the routine Wigner3j were reordered to avoid a division by zero.
• Numpy's auto-configuration is now used to detect the LAPACK libraries.
• Many minor updates to the python documentation and unix man pages.

Citation: M. A. Wieczorek, M. Meschede, I. Oshchepkov, E. Sales de Andrade (2016). SHTOOLS: Version 3.4. Zenodo. doi:10.5281/zenodo.61180