Update VirtualBox gem requirement to 0.6.1

Gemfile

@@ -1,7 +1,7 @@
 source :gemcutter
 
 # Gems required for the lib to even run
-gem "virtualbox", "~> 0.6.0"
+gem "virtualbox", "~> 0.6.1"
 gem "net-ssh", ">= 2.0.19"
 gem "net-scp", ">= 1.0.2"
 gem "json_pure", ">= 1.2.0"

Rakefile

@@ -10,7 +10,7 @@ begin
     gemspec.homepage = "http://github.com/mitchellh/vagrant"
     gemspec.authors = ["Mitchell Hashimoto", "John Bender"]
 
-    gemspec.add_dependency('virtualbox', '~> 0.6.0')
+    gemspec.add_dependency('virtualbox', '~> 0.6.1')
     gemspec.add_dependency('net-ssh', '>= 2.0.19')
     gemspec.add_dependency('net-scp', '>= 1.0.2')
     gemspec.add_dependency('json_pure', '>= 1.2.0')

vagrant.gemspec

@@ -241,22 +241,22 @@ Gem::Specification.new do |s|
     s.specification_version = 3
 
     if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<virtualbox>, ["~> 0.6.0"])
+      s.add_runtime_dependency(%q<virtualbox>, ["~> 0.6.1"])
       s.add_runtime_dependency(%q<net-ssh>, [">= 2.0.19"])
       s.add_runtime_dependency(%q<net-scp>, [">= 1.0.2"])
       s.add_runtime_dependency(%q<json_pure>, [">= 1.2.0"])
       s.add_runtime_dependency(%q<archive-tar-minitar>, ["= 0.5.2"])
       s.add_runtime_dependency(%q<mario>, ["~> 0.0.6"])
     else
-      s.add_dependency(%q<virtualbox>, ["~> 0.6.0"])
+      s.add_dependency(%q<virtualbox>, ["~> 0.6.1"])
       s.add_dependency(%q<net-ssh>, [">= 2.0.19"])
       s.add_dependency(%q<net-scp>, [">= 1.0.2"])
       s.add_dependency(%q<json_pure>, [">= 1.2.0"])
       s.add_dependency(%q<archive-tar-minitar>, ["= 0.5.2"])
       s.add_dependency(%q<mario>, ["~> 0.0.6"])
     end
   else
-    s.add_dependency(%q<virtualbox>, ["~> 0.6.0"])
+    s.add_dependency(%q<virtualbox>, ["~> 0.6.1"])
     s.add_dependency(%q<net-ssh>, [">= 2.0.19"])
     s.add_dependency(%q<net-scp>, [">= 1.0.2"])
     s.add_dependency(%q<json_pure>, [">= 1.2.0"])