Get the Room List. 

This is an authenticated listing of all Rooms. 

Each Room is represented by a TRoom. The collection of Rooms is represented by a List of TRoom. 

A token is passed for authentication. If the authentication fails, or other errors occur, no Rooms are returned. The result of the authentication is represented by a TAuthenticate object. 

Requires a valid registration key entry for the Short Courses feature. 

This function has security level "Unrestricted", and can be accessed by any authenticated user.

[WebMethod(Description = "Gets a list of all rooms")]
public TAuthRoomList GetRooms(string sToken);