genlib/fifo/AsyncFIFO: fix data corruption bug
Revert "fhdl/tools/group_by_target: remove resort_statements"

This reverts commit 939f01cee2ebec6df738652412b1048b958bf09f.
fhdl/tools: do not export resort_statements
doc/bus: update
fsm.py: set reset_state
wishbone.py: add Crossbar (concurrent/parallel/many-to-many interconnect)
Merge branch 'master' of github.com:milkymist/migen