Layout changes:
Add Bootstrap and SASS gems
Add rails image
Add initial styles
Add partials for footer, header and IE shim
Add SASS fetures to custom.css.scss
Add named routes for home, about, help and contact pages.
Fix typo in contact page.
Remove redundancy from rspec
Add redcarpet gem to generate rails guide and rails api documentation
Add Users controller and sign up page and route.
Exercise 5.6.1: use have_selector in contact page test.
Exercises 5.6.2 and 5.6.3
Exercise 5.6.4