Merge pull request #4965 from RosettaCommons/roccomoretti/interactive_tracer
[ Foldit ] Convert to using the Tracer system
Convert Foldit's use of std::cout to the Rosetta tracer system. We should now be pushing things through the Rosetta logging system, and getting the line annotations for most things. (There were a few things which stay std::cout because they're used before the tracer system is initialized or are otherwise "outside" the tracer system.)