Make *most* integration tests work on Windows, by skipping xdisplay.

Windows doesn't use xdisplay stuff, and the tools for it (bin/daemonize)
don't run on Windows.  Just skip those...

@rev rjayaramappa@
https://gus.my.salesforce.com/apex/adm_workdetail?id=a07B0000000WMmo
Merging origin/fabbott/master-pending-windows into master