Arrange Gravatar 'change' link to open in a new window
Added tests to make sure that profile and settings link don't appear when a user isn't signed in
update test to use sign_in method
Create form partial to refactor form fields in edit and new path, update test
Arranged that signed_in users have no reason to access the new and create actions in the Users controller
Write test to make sure that the friendly forwarading only forwards to the given URL the first time