Gemfile in vagrant-dns-server-0.3 vs Gemfile in vagrant-dns-server-0.4

@@ -1,5 +1,12 @@
 # A sample Gemfile
 source "https://rubygems.org"
 
 gemspec :development_group => :dev
 
+group :development do
+  # We depend on Vagrant for development, but we don't add it as a
+  # gem dependency because we expect to be installed within the
+  # Vagrant environment itself using `vagrant plugin`.
+  gem "vagrant", :git => "git://github.com/mitchellh/vagrant.git"
+end
+