Made the retracting of save_objects and interface modes more efficient,
but they did not work when assert-behavior mode was Equality owing to
the getFactHandle(object) method. Bug? I added a new mode of
entrypoints. This is the fastest yet, even faster than interface, but it
suffers from a couple of drawbacks. First, I can not find a way to
define an entrypoint outside of the DRL, so this method requires that
the drl define entrypoints equal to the step's bean name for each step
that has update facts. Second, this method assumes that during runtime
the user will not be inserting facts in specific entry points, but
rather using the default.