Update the mediawiki cookbook and upstream cookbooks

Compatibility with Chef 14

cookbooks/windows/libraries/windows_helper.rb

@@ -1,9 +1,9 @@
 #
 # Author:: Seth Chisamore (<schisamo@chef.io>)
 # Cookbook:: windows
-# Library:: helper
+# Library:: windows_helper
 #
-# Copyright:: 2011-2017, Chef Software, Inc.
+# Copyright:: 2011-2018, Chef Software, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -20,6 +20,9 @@
 require 'uri'
 require 'Win32API' if Chef::Platform.windows?
 require 'chef/exceptions'
+require 'openssl'
+require 'chef/mixin/powershell_out'
+require 'chef/util/path_helper'
 
 module Windows
   module Helper
@@ -30,6 +33,7 @@ module Windows
     # returns windows friendly version of the provided path,
     # ensures backslashes are used everywhere
     def win_friendly_path(path)
+      Chef::Log.warn('The win_friendly_path helper has been deprecated and will be removed from the next major release of the windows cookbook. Please update any cookbooks using this helper to instead require `chef/util/path_helper` and then use `Chef::Util::PathHelper.cleanpath`.')
       path.gsub(::File::SEPARATOR, ::File::ALT_SEPARATOR || '\\') if path
     end
 
@@ -47,16 +51,6 @@ module Windows
       end
     end
 
-    # Create a feature provider dependent value object.
-    # mainly created becasue Windows Feature names are
-    # different based on whether dism.exe or servicemanagercmd.exe
-    # is used for installation
-    def value_for_feature_provider(provider_hash)
-      p = Chef::Platform.find_provider_for_node(node, :windows_feature)
-      key = p.to_s.downcase.split('::').last
-      provider_hash[key] || provider_hash[key.to_sym]
-    end
-
     # singleton instance of the Windows Version checker
     def win_version
       @win_version ||= Windows::Version.new
@@ -88,7 +82,7 @@ module Windows
           cache_file_path = source
         end
 
-        windows_path ? win_friendly_path(cache_file_path) : cache_file_path
+        windows_path ? Chef::Util::PathHelper.cleanpath(cache_file_path) : cache_file_path
       end
     end
 
@@ -103,7 +97,7 @@ module Windows
       buf.strip
     end
 
-    def is_package_installed?(package_name) # rubocop:disable Style/PredicateName
+    def is_package_installed?(package_name) # rubocop:disable Naming/PredicateName
       installed_packages.include?(package_name)
     end