Rakefile in ggem-1.2.1 vs Rakefile in ggem-1.3.0

@@ -1,7 +1,8 @@
+#!/usr/bin/env rake
+
 require 'assert/rake_tasks'
-Assert::RakeTasks.for(:test)
+Assert::RakeTasks.install
 
-require 'bundler'
-Bundler::GemHelper.install_tasks
+require 'bundler/gem_tasks'
 
 task :default => :build