actorlib/fifo: fix no-op assignment due to .payload omission
Merge pull request #8 from jix/fix-acitorlib-fifo

actorlib/fifo: fix no-op assignment due to .payload omission
xilinx_vivado: use REM for comment on Windows
actorlib/fifo: add buffered parameter
flow: endpoint description structure with packetized parameter
Merge branch 'master' of https://github.com/m-labs/migen

Conflicts:
	migen/actorlib/fifo.py
	migen/actorlib/structuring.py
	migen/flow/actor.py
fhdl/tools: verify that clock_domain exists before renaming