remove rake end-of-input error
send AdminMailer#daily_digest if there is at least one new record within a day
add rest_client gem
enable tracking signup via Facebook
add unregister_uri to FakeWeb
put GoogleAnalyticsApi.event to background
add hidden field 'ga_client_id' in Signup#form
call GA event "Signup - Successful" on new user
add event value for GoogleAnalyticsApi
add event value to Analytics API test steps