`vagrant suspend` update to work with new environment

lib/vagrant/commands.rb

@@ -137,9 +137,9 @@ msg
       # This command requires that an instance already be brought up with
       # `vagrant up`.
       def suspend
-        Env.load!
-        Env.require_persisted_vm
-        Env.persisted_vm.suspend
+        env = Environment.load!
+        env.require_persisted_vm
+        env.vm.suspend
       end
 
       # Resume a running vagrant instance. This resumes an already suspended

test/vagrant/commands_test.rb

@@ -167,8 +167,13 @@ class CommandsTest < Test::Unit::TestCase
       @persisted_vm.stubs(:saved?).returns(false)
     end
 
+    should "load the current environment" do
+      Vagrant::Environment.expects(:load!).once.returns(@env)
+      Vagrant::Commands.suspend
+    end
+
     should "require a persisted VM" do
-      Vagrant::Env.expects(:require_persisted_vm).once
+      @env.expects(:require_persisted_vm).once
       Vagrant::Commands.suspend
     end