Merge pull request #466 from aw/fix-to-ary-error

Implement to_ary to avoid calls to method_missing

lib/grape/route.rb

@@ -18,6 +18,11 @@ def method_missing(method_id, *arguments)
     def to_s
       "version=#{route_version}, method=#{route_method}, path=#{route_path}"
     end
-
+
+    private
+    def to_ary
+      nil
+    end
+
   end
 end