Simplejson

* Allow unknown numerical types for indent parameter
https://github.com/simplejson/simplejson/pull/29

* Fix crashing regression in speedups introduced in 2.3.1

* namedtuple_as_object now checks _asdict to ensure that it
is callable.
https://github.com/simplejson/simplejson/issues/26

* Any objects with _asdict() methods are now considered for
namedtuple_as_object.
https://github.com/simplejson/simplejson/pull/22

* Fix MANIFEST.in issue when building a sdist from a sdist.
https://github.com/simplejson/simplejson/issues/16

* Remove setuptools requirement, reverted to pure distutils
* use_decimal default for encoding (dump, dumps, JSONEncoder) is now True
* tuple encoding as JSON objects can be turned off with new
tuple_as_array=False option.
https://github.com/simplejson/simplejson/pull/6
* namedtuple (or other tuple subclasses with _asdict methods) are now
encoded as JSON objects rather than arrays by default. Can be disabled
and treated as a tuple with the new namedtuple_as_object=False option.
https://github.com/simplejson/simplejson/pull/6
* JSONDecodeError is now raised instead of ValueError when a document
ends with an opening quote and the C speedups are in use.
https://github.com/simplejson/simplejson/issues/15
* Updated documentation with information about JSONDecodeError
* Force unicode linebreak characters to be escaped (U+2028 and U+2029)
http://timelessrepo.com/json-isnt-a-javascript-subset
* Moved documentation from a git submodule to
https://simplejson.readthedocs.io/