lz4 0.9.3

Fixes to block API

on Python PyPI

This release makes the block (de)compress functions more tolerant to the source argument past to them. The logic is now:

• First check if source is a bytearray and deal appropriately with that if needed
• If the source argument is not a bytearray cast it to a bytes object

This should give compatibility with 0.9.1 and earlier.