update `defui` for the recent changes in Om

[anmonteiro]

omcljs/om@9a87a36

[den1k]

@anmonteiro cellophane breaks compilation in clj

[anmonteiro]

@den1k because of this issue? do you want to take it?
should be pretty easy to fix. see ladderlife/cellophane@316734e

[den1k]

@anmonteiro I poked around in it a couple days ago, trying to rid cellophane entirely. That's the right direction?

[anmonteiro]

I suppose we can just rely on Om Next now that it has server-side rendering.