adds basic 'my account' page

Fields related with authentication are not included
because the auth system will change to integrate with 
Madrid.es's Ciudadano360
ref: #22

config/locales/responders.es.yml

@@ -7,4 +7,6 @@ es:
         notice: "%{resource_name} actualizado correctamente."
       destroy:
         notice: "%{resource_name} borrado correctamente."
-        alert: "%{resource_name} no ha podido ser borrado."
+        alert: "%{resource_name} no ha podido ser borrado."
+      save_changes:
+        notice: "Cambios guardados"