Profiles should have a private shareable URL

[auxesis]

Scenario: Share profile with a client
  When I go to /profiles
  And I visit the first profile
  Then I should see a list of graphs
  And when I follow "share profile"
  Then I should see a textbox containing a private URL
  When I go to that private URL
  Then I should see the same profile
  And the builder/profile navigation should not be visible