Cannot have a grandchild class of Yielder about infomancers-collections HOT 3 CLOSED

This is because of the check in YielderChecker. Need to check for higher 
hierarchies
instead of just the superName string.

This is broken in yielder-0.2.0.  Please use the following patch for Util.java. 
 The
current version does not convert the '/' to '.' and the isAssignable from method
should be called from the Yielder class, not the class being loaded.

I've added a test case for it, but apparently I've written it badly. Added the 
patch, and it now works on the unit 
tests (which were fixed as well). Thanks!