UIOptions live preview update

[Justin Obara]

Hello,

So I've spent most of today working on trying to get UI Options' live preview working, with our iframe scheme. Please take a look at my FLUID-3761 branch in my github repo.

https://github.com/jobara/infusion/tree/FLUID-3761

I believe I have it basically working, although it's a bit buggy at the moment and needs a ton of cleanup. The main issue I'm having right now is that UI Options itself will update at the wrong time, seemingly randomly. It should only update after the panel has hidden, however sometimes it will update right away. 

Please let me know if you have any thoughts on this issue and the rest of the code in general.

Thanks
Justin