Now both dynamic and snapshot views are supported under both
Unix/Linux and Windows.

The implementation is based on "cleartool pwv" which gets the
working view.

Change-Id: I0d21d2c84fae4a641a3bac8b1087cfeffb89c447
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Knut Petter Svendsen <knutpett@pvv.org>