Remove ability to specify multiple options
Remove ability to specify multiple options

I hadn't noticed that this was even possible until removing the ability to pass
a hash of options and next nodes. Irrespective, we're not using this ability so
I'm removing it.

alphagov/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,alphagov/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,alphagov/smart-answers,alphagov/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,stwalsh/smart-answers,aledelcueto/smart-answers