a number of erronuous return values that made the script fail. What's left
is let Marc clean up the mess he made with t-eoReal and t-eoRealAllESAllAgain
This impacts on many files, creating new entries in src (the old ones are moved
to obsolete dir), modifying t-eoSymreg.cpp and t-eobin.cpp in test,
as well as gprop.cc and mastermind.cc in app dir (not to mention almost all
files in tutorial:-(