Chefspec doesn't seem to support Windows 'rights' attributes

chefspec_windows_rights_attributes

When I run this spec, I get errors saying undefined method `rights' for Chef::Resource::CookbookFile since I'm using the [Windows 'rights' attribute](http://wiki.opscode.com/display/chef/Improved+Windows+File+Security)

Does chefspec support the Windows 'rights' attribute?


```ruby
require 'chefspec'

describe 'hosts_file::windows' do

  let(:chef_run) { ChefSpec::ChefRunner.new }

  it 'installs the default Windows hosts file' do
    chef_run.node.automatic_attrs[:platform] = 'windows'
    chef_run.converge 'hosts_file::windows'

    expect(chef_run).to create_file 'C:/windows/system32/drivers/etc/hosts'
  end
end
```

$ rspec spec/windows_spec.rb -c -fd                       

hosts_file::windows

Recipe Compile Error in /cookbooks/hosts_file/recipes/windows.rb

NoMethodError
-------------
undefined method `rights' for Chef::Resource::CookbookFile

Cookbook Trace:
---------------
  /cookbooks/hosts_file/recipes/windows.rb:8:in `block in from_file'
  /cookbooks/hosts_file/recipes/windows.rb:6:in `from_file'
  /cookbooks/hosts_file/spec/windows_spec.rb:9:in `block (2 levels) in <top (required)>'

Relevant File Content:
----------------------
/cookbooks/hosts_file/recipes/windows.rb:

```ruby
  5:  
  6:  cookbook_file "#{ENV["systemroot"]}/system32/drivers/etc/hosts" do
  7:    source "#{node["hosts_file"]["name"]}#{node["hosts_file"]["suffix"]}"
  8>>   rights :full_control, "Administrators"
  9:    rights :full_control, "SYSTEM"
 10:    rights :read, "Users"
 11:  end
 12:  
```
  installs the default Windows hosts file (FAILED - 1)

Failures:

  1) hosts_file::windows installs the default Windows hosts file
     Failure/Error: chef_run.converge 'hosts_file::windows'
     NoMethodError:
       undefined method `rights' for Chef::Resource::CookbookFile
     # ./recipes/windows.rb:8:in `block in from_file'
     # ./recipes/windows.rb:6:in `from_file'
     # ./spec/windows_spec.rb:9:in `block (2 levels) in <top (required)>'

Finished in 0.00932 seconds
1 example, 1 failure

Failed examples:

rspec ./spec/windows_spec.rb:7 # hosts_file::windows installs the default Windows hosts file