BUG: special: fix asymptotic expansion in rgamma
BUG: special: fix several issues in poch

Handle better the cases where the gamma functions in the definition hit
poles or over/underflow.

Fixes gh-1437
GEN: special: regenerate files
changing the doc strings of measurements.sum
correcting the measurements.sum() doc strings
small changes in the description of class hypergeom_gen
BLD: split id_dist fortran subroutines less
Merge pull request #2817 from pv/fortran-split-less

BLD: split id_dist fortran subroutines less
Perform some geometric RV computations in log space to increase
accuracy.

Add tests for logcdf, logsf and ppf geom RV functions.
Merge pull request #2735 from pv/special-rg

BUG: special: Fix asymptotic behavior of rgamma and reimplement poch
DOC: fix link to FITPACK library
MAINT: replace internal calls to `norm.pdf` with _norm_pdf
to avoid the public function call overhead. Closes gh-1710
DOC: remove references to 2d spline function from 1d section
Fixing Issue #2720

Fixing wrong docstring of dct function (Type III, norm=ortho)
https://github.com/scipy/scipy/issues/2720
Merge pull request #2820 from andreas-h/fitpack_link

DOC: interpolate: fix link to FITPACK library
DOC: sparse: fixed a spelling mistake in the 'sparse.rand' docstring.
Merge pull request #2819 from jwkvam/geom_log_space

Perform some geometric RV computations in log space to increase accuracy.
Merge pull request #2826 from ClemensFMN/patch-1

Fixing Issue #2720
Merge pull request #2822 from EvgeniBurovski/norm.pdf

replace internal calls to `norm.pdf` with _norm_pdf
MAINT: avoid nans in logistic pdf