Correct Windows 8 32-bit environment.

Corrected the right architecture for Windows 8 x86 to get builds pass.

Change-Id: I82a0837aa25a5ca94f6a819799a3330264978558
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Jenkins slave updates

b2qt physical machine added.
Windows environment corrected.

Change-Id: I9cada355a767b001b7977bfd95af5a8ab52883a8
Reviewed-by: Tarja Sundqvist <tarja.sundqvist@digia.com>
Reviewed-by: Antti Kokko <antti.kokko@digia.com>
Reviewed-by: Heikki Halmet <heikki.halmet@digia.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>