This is version 0.01.  Following are excerpts from the revision
control logs.

Changes since version 0.0

* TxHoldCount changed from a #define to an unsigned

* log when txHoldCount is holding back a bpdu transmission

* checking in old(ish) changes adding curly braces for clarity and a
couple more log messages.

* new file, ScenarioCommands.txt, that documents the scenario file
format.
 
* new ArgParser to make parsing scenario file "easy".  also changed
scenario file format, but have not yet updated all the scenario files.
 
* nodes can now have offsets for their every-one-second timers

Changes from before version 0.0

Too many changes to name...  translation of rstplib to C++, more
logging, different logging, etc.


