Only show OpenID links if their keys have been set.

config/secrets.yml.example

@@ -10,11 +10,26 @@ defaults: &defaults
   # Your errbit API key
   # errbit_key: '12345'
 
-  google_key: 'changeme'
-  google_secret: 'changeme'
+  # Leave the variables' names empty, unless you use the providers, in which case you need to
+  # register your applicaton and add the actual keys.
 
-  facebook_key: 'changeme'
-  facebook_secret: 'changeme'
+  # If you add more providers, keep the format of the variables: provider_key, provider_secret
+
+  # Register your appllication with Google from https://code.google.com/apis/console#:access
+  google_key: ''
+  google_secret: ''
+
+  # Register your application with Facebook from https://developers.facebook.com/
+  facebook_key: ''
+  facebook_secret: ''
+
+  # Developers do not need to register their application for novell account to work.
+  # You must, however, leave the sample data there, for the login option to appear.
+
+  novell_key: 'sample data'
+  novell_secret: 'sample data'
+
+  # If you add more providers that do not require a key, you still have to create the 2 variables with sample data
 
 development:
   <<: *defaults