the custom_web_site::delete action does not remove apache2 from all supported platforms

[rmiesen]

While I was going through the Configure Apache web server on Linux module on http://learn.chef.io, I noticed that the :delete action in resources/site.rb hard-codes the package name of apache2:

action :delete do
  package 'httpd' do
    action :delete
  end
end

In doing so, (1) the apache2 package will not be removed on the Ubuntu platform and (2) the :delete action might cause a chef run to fail on Ubuntu, depending on how the package resource responds to attempts to uninstall a package that doesn't even exist in repos known to the OS.

[rmiesen]

Found another bug: the :delete action is not a valid action for the package resource. I will fix this along with the above mentioned issue in my pull request.