Switch markup for layout and home templates to use bootstrap (Ch. 5.1.1)
Install boostrap-sass and add some custom styles (Ch. 5.1.2)
Extra header and shim partials from layout (Ch. 5.1.3)
Add footer partial to layout with styles (Ch. 5.1.3)
Use SCSS nesting to condense style customizations (5.2.2)
Move static pages to root directory (5.3.2)
Use named routes in layout (5.3.3)

The layout doesn't have real link targets for its navigation yet.

Use named route helpers to generate a proper link target.  Even though
the Rails Tutorial doesn't say to, add spec coverage so I can know that
it works.
Use more concise RSpec syntax (Ch. 5.3.4)

The tutorial suggests using more concise syntax for RSpec to make it
more readable.

Use the concise syntax, except when the generated messages are less
informative than the custom "it" string.
Generate  UsersController (Ch. 5.4.1)
Add Signup Page (Ch. 5.4.2)