fix for bugs 66, 67 related to teardown problems
-tear down not removing swiz creation event listener
-tear down setting up prototype beans
typo - last bug fix forgot to delete the original line
fix recursive endless loop when source of Bean is a Bean by
https://github.com/carlosrovira
support for nested object creation (fixing crash when there's no place
holder object) by https://github.com/carlosrovira