Rakefile in rest-graph-2.0.0

- old
+ new

@@ -1,9 +1,10 @@
 # Add your own tasks in files placed in lib/tasks ending in .rake,
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 
 require(File.join(File.dirname(__FILE__), 'config', 'boot'))
 
+require 'rake/dsl_definition'
 require 'rake'
 require 'rake/testtask'
 require 'rake/rdoctask'
 
 require 'tasks/rails'