Bind 'this' to self.
Correct 'idAdmin' attribute to 'isAdmin?'.
Add CSS reset, and significant CSS changes.
Minor modifications to style.
Remove 'if current_user logout_path' erb, in favour of a hard link in Ember.
Add 'is_admin?' to user#show response. Correct user#index response.
Add centered CSS classes.
Modify navigation bar. Fix user#show avatars, isAdmin check.

Remove extraneous links from nav.

Add
  Logout nav link.
  Explicit index template.