Change logs for cython source package in Yakkety

cython (0.24.1-2) unstable; urgency=medium

  * patches/deb_nopngmath
    - disable pngmath sphinx extension (deprecated)
  * debian/rules
    - call 'make clean' and remove possible Cython.egg-info and docs/build
      to clean sources fully (Closes: #833951)

 -- Yaroslav Halchenko <email address hidden>  Thu, 11 Aug 2016 13:50:15 -0400

cython (0.23.4-0ubuntu5) xenial; urgency=medium

  * Cherry-pick patch to repair deep-copying (and pickling) of the control flow
    state in compiled Cython (extension type instances lost their state).

 -- Matthias Klose <email address hidden>  Mon, 22 Feb 2016 17:19:29 +0100