DEP: remove deprecated misc.radon function.
MAINT: always regenerate Cython files, except for when building from sdist.

The code that's replaced here would not do the right thing when building from a
checkout of a release tag in a git repo.

See https://github.com/scipy/scipy/commit/c0124923b for discussion.
ENH: special: improve way C++ functions are dealt with

This moves all ufuncs to _ufuncs shared library, and uses _ufuncs_cxx
only for exporting function pointers.
GEN: special: regenerate files
Merge pull request #472 from pv/special-cxx

ENH: special: improve way C++ functions are dealt with
Merge pull request #492 from rgommers/remove-radon

DEP: remove deprecated misc.radon function.
Merge pull request #494 from dlax/ticket-1770

ENH: optimize: handle matrix objects as initial guess (ticket #1770)
Merge pull request #493 from rgommers/when-cython-regenerate

MAINT: always regenerate Cython files, except for when building from sdist.
MAINT: mark SWIG-generated files as binary, too
MAINT: add a couple more files to .gitignore
Merge pull request #495 from WarrenWeckesser/more-gitignore

MAINT: add a couple more files to .gitignore
BUG: io: MatFile5Reader.get_variables casts variable_names as separate list.

This enables loadmat to take immutable sequences and fixes the bug
whereby loadmat empties a list passed to the variable_names kwarg.
MAINT: analog prototypes should return arrays, not lists
MAINT: more helpful error when cheby/ellip called with negative ripple
DOC: Expansion and cleanup of docstrings, add examples
DOC: add note about phase-matched property
DOC: change descriptions of frequency so that rad/s is just an example
DOC: add plt.show() to examples
DOC: Add notes about Thomson Cauer Zolotarev synonyms
DOC: undo Raises section, move butter notes to Notes section