Flatten paths to MS SQL Cluster agent templates.

This allows to avoid many difficulties with scripts referencing.
Though this is an ad-hoc fix, it allows to avoid fixing paths
calculation in conductor which might produce other bugs.

Also, open ports for WinRM 2.0 - another thing to make MS SQL Cluster
Server deploy.

Change-Id: I1f2f7ea9532a91b115fd7c1756b346443835e3a8