Grady/ai authoring

Transitioned back to AI grading as a Text box within the Authoring interface, and did the appropriate behind the scenes work (validation, primarily) to make sure that the examples are being proper validated.
I thought about this too... If we include it as required, any time that EBA is enabled we will get an error.  This way we throw a Update From XML Error in either of the cases you mention, and I will surround it with a try catch to send that message back to the user.