update vagrant dependency to 1.2.1

Gemfile

@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 
-gem 'vagrant', :git => 'git://github.com/mitchellh/vagrant.git', :tag => 'v1.1.5'
+gem 'vagrant', :git => 'git://github.com/mitchellh/vagrant.git', :tag => 'v1.2.1'
 gemspec

lib/vagrant-hostmanager/version.rb

@@ -1,5 +1,5 @@
 module VagrantPlugins
   module HostManager
-    VERSION = '0.1.1'
+    VERSION = '0.1.2'
   end
 end

test/Vagrantfile

@@ -7,7 +7,7 @@ Vagrant.configure('2') do |config|
   config.vm.box = 'precise64-chef11.2'
   config.vm.box_url = 'https://opscode-vm.s3.amazonaws.com/vagrant/opscode_ubuntu-12.04_chef-11.2.0.box'
 
-  config.hostmanager.auto_update = false
+  config.hostmanager.auto_update = true
 
   config.vm.define :server1 do |server|
     server.vm.hostname = 'fry'