Fixes a bug where non-ugens were added to the ugen evaluation list.
Ensures all mediaIn tests and demos are input bus-location aware (until this is removed).
Temporarily works around options expansion bug in inputManager.
Improves factoring of NativeNodeManager. Improves factoring of ugens that read from buses.
Improves envelope validation and tests. gh-38: Adds preliminary For Ann (Rising) demo.