(Patch by Dionysios Kalofonos)

 explain json.dumps for non-string keys in dicts. closes issue6566. Patch contributed Kirubakaran Athmanathan

Patch by Dylan Sarber.

using --with-system-expat working when the system expat does not have
salted hash support.

using --with-system-expat working when the system expat does not have
salted hash support.

  table internal to the pyexpat module's copy of the expat library to avoid a
  denial of service due to hash collisions.  Patch by David Malcolm with some
  modifications by the expat project.

- change references from configure.in to configure.ac

in the hash table internal to the pyexpat module's copy of the expat
library to avoid a denial of service due to hash collisions.
Patch by David Malcolm with some modifications by the expat project.

in the hash table internal to the pyexpat module's copy of the expat
library to avoid a denial of service due to hash collisions.
Patch by David Malcolm with some modifications by the expat project.

Patch by Roger Serwy.