RavenDB-1787 RavenFS - windows auth support
Removing unused Authorize methods (TryAuthorize are in use now)
Removing unused methods
RavenDB-1787 Adding stats endpoint (/ravenfs/stats). Ensure that we will return only stats of file systems that a user has access to.
Merge branch 'RavenDB-1787' of https://github.com/arekais/ravendb into New3
Don't force the load of all file systems when using admin stats