Update windows_feature.ps1 fact to run on x64
Disable clipboard, audio, usb on VirtualBox

  - Clipboard access can totally wreak havoc on OSX with VirtualBox
    4.3.16, so just disable it outright.
  - Other options disabled since they're unnecessary
Move master setup from inline to shell script

 - This lets us better reset our environment from inside a box during
   development
Use OpenTable WindowsFeature instead of DISM
Use modules files instead of top-level files
Vagrant plugins apply to all OSes in README
Windows-feature fact should always block
Use Windows 2012R2 with 4.3 VirtualBox additions
Move Windows demo file setup to standalone PS

 - This enables editing on host OS, and re-running the script to
   repopulate scripts on local Windows machines
Add first wave of Windows demo files to demo users

 - Start with demoing old school Computer Management / users GUI
 - Move to useradd.bat file to see how tricky that setup can be
 - Move to Powershell Add-LocalUser.ps1 script to demo
 - Finally show off simplicity of user.pp
Ensure that when master is setup, owner is good
Initial commit of site.pp with web classification

  - Note that during demo, classes can be uncommented