added sorting DSL

lib/orbit_app/module/widget.rb

@@ -102,12 +102,17 @@ module OrbitApp
           def  initialize(&block)
             @query = nil
             @image = nil
+	    @sorting_query = nil
             @more_link = {}
             @fields = []
             @enabled_styles = STYLE
              block.arity < 1 ? instance_eval(&block) : block.call(self) if block_given?
           end
 
+	  def sorting(query)
+	    @sorting_query = query
+	  end
+
           def enable(args)
             @enabled_styles = args
           end
@@ -122,7 +127,7 @@ module OrbitApp
           end
 
           def to_module_app_format
-            {"query"=>@query,"image"=>@image,"more_link"=>@more_link,"enabled_styles"=>@enabled_styles} rescue nil
+            {"query"=>@query,"image"=>@image,"more_link"=>@more_link,"enabled_styles"=>@enabled_styles,:sorting_query=>@sorting_query} rescue nil
           end
 
           def link_field(field_name,setting)