rename Option to OptionDefinition to be full Rails compliant

app/models/merged/option_definition.rb

@@ -0,0 +1,27 @@
+module Merged
+  class OptionDefinition < ActiveYaml::Base
+    set_root_path Engine.root + "config"
+
+    fields :name , :default , :description , :values , :type
+
+    def type
+      return attributes[:type] unless attributes[:type].blank?
+      if has_values?
+        "select"
+      else
+        "text"
+      end
+    end
+
+    def has_values?
+      return false if attributes[:values].nil?
+      ! attributes[:values].empty?
+    end
+
+    def values
+      return [] unless has_values?
+      attributes[:values].split(" ")
+    end
+
+  end
+end