- update to 0.9.10:
* Updated the //README.md to be clear that parsing arbitrary JS
code may not work.
* Fixed serialization for objects that subclass `int` or `float`:
Previously we would use the objects __str__ implementation, but
that might result in an illegal JSON5 value if the object had
customized __str__ to return something illegal. Instead,
we follow the lead of the `JSON` module and call `int.__repr__`
or `float.__repr__` directly.
* While I was at it, I added tests for dumps(-inf) and dumps(nan)
when those were supposed to be disallowed by `allow_nan=False`.