Eradicate the old AuthPlugin system.
  Add a new handler for creating accounts.
Add navbar link to create account.
Gently modify the about and home pages.
Remove yesod-auth plugin.
Almost add a create account form.
Set default title to "lambdatube".

If I forget to set the page title in a widget, it's now done automatically.
Finish create account form, need to add in database transactions.

I wouldn't usually commit for such a trivial change, but the power might be
going out soon, so...
Add more stuff to the create account form.
Add site icon.
Add database transaction to create account.

Accounts are now actually created!
Add basic user viewing page.
Styling changes.
Added non-functional login handler.
Change route for account creation.