Add a few tests using variable-length Eigen Vector containers.  The code should satisfy #2799 so long as Eigen 3.1.2 or better is used.
Add a few tests using variable-length Eigen Vector containers.  The
code should satisfy #2799 so long as Eigen 3.1.2 or better is used.



ddemidov/antioch,ddemidov/antioch,ddemidov/antioch,ddemidov/antioch