Refactor timeliner into multiple html pages

[rufuspollock]

• Home - introduction + create (plus, possibly in future, a dashboard)
• View
• Embed

  Implementation Notes

• We will need to implement a javascript redirect from base page to view page in future

  Why

• 1 page
• Multiple pages

1 page vs multiple pages

• (+) no templating worries
• (-) cleaner separation (already have separate pages in the JS ...)
• (-) better analytics
• (-) change in html can be direct in the page rather than just in js

[rufuspollock]

Note, not splitting out embed for the time being ...