Summary of important user-visible changes for specfun 1.1.0:
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 ** The following functions are new:

      laplacian  multinom  multinom_coeff  multinom_exp

 ** The following function was removed since it is now part of
    GNU octave core:

      erfcx

 ** Help text of most functions has been improved

 ** The function `ellipj' was replaced by a C++ implementation that
    should perform faster.
