Clone from WebDAVSharp/WebDAVSharp.Server
 on github master branch commit 1d2086a502937936ebc6bfe19cfa15d855be1c31.

Logging component are removed.
MSBuild nuget.targets are removed.

HttpListener AuthenticationScheme changed to IntegratedWindowsAuthentication.
WebDAVServer.Thread set to background and remove ThreadPriority.Highest.
Incomprehensible property ParentCollection in IWebDavStoreItem are removed.

Reformatted by resharper.