Sign in/sign up flow
Change sidebar, add roles to users
Check admin status
Rudimentary Salesforce controller
Link to home from sidebar image
Styles for landing page

Because I set this up using just html and css, there may be some other
global styles that might affect it.
Merge styling from Clare
Move landing styling into home.css.scss
Start of styling for Devise pages
Helper method to change page title
Merge pull request #41 from lankyfrenchman/user_sessions

Landing/Sidebar/Sign up/Sign in Changes