The attribution looks better on the right. (For now.)
Title length is consistent with story title length, plus child_ids must be unique.
Keeps title from being too short or too long.
Allows story titles to be up to 100 characters long.
Tests title length validations.
WIP: Switched from .create to .new.

Still need to make sure all objects are valid before saving anything. At this point, if @choice1 is too short, @choice2 and @choice3 will still be saved. The lengths should all be checked before save commands are called, otherwise we should flip out at the user and tell them how they screwed up.