extend primary partition to use template.json
Merge pull request #117 from StefanScherer/feature/extend-primary

extend primary partition to use template.json
Fixing cut-and-paste error from 2012 autounattend.
Fixing product key URL in comment.
Merge pull request #121 from JVimes/develop

Fixing cut-and-paste errors in Windows 8.1 Autounattend.xml