WIP: first prototype of the JSON API.

* Tests not included, so I cannot prove that it works

app/serializers/conference_serializer.rb

@@ -0,0 +1,23 @@
+class ConferenceSerializer < ActiveModel::Serializer
+  attributes :guid, :name, :description, :year, :socialtag, :date_range#, :url, :revision
+
+  def name
+    object.short_title
+  end
+
+  def description
+    object.title
+  end
+
+  def year
+    object.start_date.try(:year)
+  end
+
+  def socialtag
+    object.social_tag
+  end
+
+  def date_range
+    object.date_range_string
+  end
+end