- Update to 0.13.1:
* Guard against some malformed messages from the server
* Remove all introspection logic for progress callback introduced in 0.12
* progress callback only accept 3 arguments again
* Introduce progress4 parameter which accepts the peername as 4th argument
* Fix progress callback failing when it is an instance or class method
* Fix README.rst for PyPI
* Add possibility of getting the peer IP and port from the progress callback
* Make putfo() work with file-like objects that don't provide getvalue()
* Add putfo() method, allowing one to upload a file-like object
* Add top-level get() and put() functions for convenience
* Increase default socket time from 5 to 10 seconds