united the input step and output step classes to be testing events, working on DRYing of my_turn setup
remove commented out flip from DeqIO
style fixes to RealGCD
removed some commented code, that had been used to demonstrate firrtl bug

Router unitTests has firrtl error I believe to be related to nested whens, see unitTests.Router: lines 85 and 90
some style corrections for UnitTester

The change to fix elsewhen/otherwise blew up the node count.

Fix when / elsewhen / otherwise behavior and add unit test

Accomplish this by avoiding default-null parameters on the apply methods.

updated DecoupledAdder

Calling toBits inside of flatten makes asInput/asOutput/asDirectionless fail
on SInts.  Also, the abstract type Data was already defining it to return
Seq[Bits], so this change didn't really change the API.

unable to get idle counter to work, but machinery is in place

Fixed router when using routing table entries in table with indices higher than the number of output ports

Fixed which Mem.apply used in Queue, original use was deprecated