craftyjs/Crafty — pull request #408 by RichoM (2013-01-22 01:42:36+00:00)
Title: Bug in IE9: 'parent' and 'numChildren' properties not working

Hi, I noticed the 'parent' and 'numChildren' properties aren't working in IE9.
I think I fixed it by simply adding the corresponding Object.defineProperty(...) into the "_defineGetterSetter_defineProperty" function.