Remove unused imports, add docstrings, add UT.
Make call rate more consistent
Improve handling of user-defined messages - strip whitespace used to
format XML file, and if a last_* keyword fails, ignore all bytes until
the end of the line.
Handle all selector work on the same thread to avoid locking problems.
Extra UTs - scheduling and parsing
Eclipse dotfiles
Add documentation of design and planned directions
Remove unused Message class
Add CLI options parsing (including rate), let the Scenario create itself
from an XML
filename.
Fix threading bugs.
Restore spacing to message.xml file now that we can handle it.
Declare 0.0.1.