+ SolutionSet:: print, str, operator<<
+ SolutionSet:: enter, visit, leave
~ simple1 tests cardinality
~ simplified print/str/operator<< interface
~ simplified validate interface
+ impl report for SWObjects
~ update to point to http://www.w3.org/2013/TurtleTests/
+ doap:developer
+ TestTurtleNegativeEval
~ permit language names like C#
~ added special COUNT(*) serialization code
+ special handling for URLs with no slash after the domain:port
+ --federation-skip-simplifier