AdminDeployment_xml does get copied over

The Visual Studio ISO already contain the AdminDeployment.xml file.
Therefore when 7-zip extracts the files from ISO into the cache folder
then this "cookbook_file" doesn't do anything if it "create_if_missing".
We won't be able to override any custom settings in AdminDeployment.xml
Merge pull request #15 from yeungs/master

AdminDeployment.xml does NOT get copied over