Moved explanation of the room model to a separate user's guide.

This change has been made to facilitate the documentation of the FFD model.
Moved explanation of the room model to a separate user's guide.

This change has been made to facilitate the documentation of the FFD model.
Merged master
Added surface names for ticket #163.
Merged master
Commented access to String.

This prevents an internal error in Dymola. Support ticket 15288
Added boundary condition declaration.

This is to address issue #164
Removed records as arguments to classes.

This is for issue #164. If records are used as arguments, then Dymola obtains a compilation error.