I've updated the Git Repository with an archive so you don't need to use Git to retrieve the entire directory. I've also attached a copy here. However, you can also use the "Download Zip" on the right side of the Git screen to pull it all down.
Don posted a great Powershell script here . Mainly search and get routines, but should be a building block for a create routine. Looks like simply modifying the $uri variable to be a well formed REST call would meet your needs. Brad