pypy support

[facboy]

It seems this module doesn't work with pypy. I'm not very experienced with this stuff though, so I could be wrong.

If not, is there any plan to add support for pypy? I've seen a 'port' but it hasn't been maintained in a while: https://github.com/apendleton/python-lz4-cffi

[dropwhile]

looks like it has been forked and updated here: https://github.com/GregBowyer/lz4-cffi/