Partial work fixing the logger
Working version of logging, using what was previously the fallback logging.  log4cxx and the closest-to-functional boost::log versions still there, but not in use.
Removed log4cxx dependence from the top-level CMakeLists.txt.
Removed commented-out logger implementations.
Verified functionality.
Further removal of log4cxx from CMakeLists, and removal of the Utility/log4cxx directory.
Moved XColor() functions to the Katydid namespace
Updated Monarch to v2.6.4
Merge branch 'fix-logging' into develop