Windows: Wix disable integrated logon by default

Windows: Wix disable integrated logon by default

One of the significant differences between the NSIS and Wix
installer packages is that NSIS does not activate integrated
logon by default whereas the Wix installer does.  Enabling
integrated logon without configuring the cell, CellServDB,
installing Kerberos v5 and configuring krb5.conf can result
in a very long wait at logon.  Now that NSIS is no longer
being supported and cannot be supported as a native 64-bit
installer mechanism we must disable integrated logon by
default to prevent more bad end user experiences like
@Lotterleben described on Twitter.

Change-Id: I10be4185177f94e53295a7641dd387feb295eaa5
Reviewed-on: http://gerrit.openafs.org/6132
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>