Write SimulatedMedium
Remove old tests
Add comments
Relax too-slow-for-baud constraint
Add CTest stuff
Check arguments
Implemented SfpHost, use boost::signals2
Remove old code
Finish writing test (not that it passes)
Merge branch 'f/write-test' into f/cxx
Remove -pg from test code
Add config.h.in, fiddle with test