Update main layout and home page. It uses bootstrap now, so bootstrap gem (2.3.2.0) is also added.
Refactor shim and header partials, add footer partial with sass.
Update sass file to use nesting and variables.
Start using 'right' routes, revert static_pages_controller_spec to original state and update static_pages_spec.
Add Users controller with 'new' action and RSpec test.
Use thin instead of webrick.
Improve RSpec test.
Finish layout and routes. Last change is improving tests according to exercises (with replacing spec helper by application helper).