WIP: Create action receives information from form.
WIP: Child id validation interferes with new page creation.

This should be fixed once page creation is off-loaded to JS.
Allows different styles to be applied to written/unwritten choices.
WIP: Page creation form via JS.
Prep for JS form.
Minor refactor.
Make it easy to tell written/unwritten choices apart.
Clean up code.
Make it easier to style back arrow in the future.

[ "Back Arrow to the Future" joke here. ]
Prevent users from accessing 'new' route for pages.
Change divs to spans for easier linline styling.

Also changed "Unwritten" to "Write it!" because it reads better.