Rakefile in drain-0.5.1 vs Rakefile in drain-0.6.0

@@ -1,5 +1,11 @@
+## Uncomment to use `rake` directly rather than `bundle exec rake`
+#begin
+#  require 'bundler/setup'
+#rescue LoadError => e
+#  warn "Could not setup bundler: #{e.message}"
+#end
 require 'rake'
 
 require 'rake/testtask'
 Rake::TestTask.new do |test|
   test.libs << 'test'
@@ -13,14 +19,16 @@
 rescue LoadError => e
   task :yard do
     warn e.message
   end
 end
+desc 'Generate docs'
 task :doc => :yard
 
 begin
   require 'dr/rake_gems'
   Gem::MyTasks.new
 rescue LoadError => e
   warn e.message
 end
 
+task :default => :test