Fix for Windows XP
Fix for Windows XP

GetTickCount64 is not available on Windows XP so clients using mordor
would crash on startup.  Replace by TimeManager::now, which returns
microseconds instead of milliseconds.

refs #112976

Change-Id: Ifdbeec4bfd544d645d67875076496b569806aee1
Signed-off-by: Andrew Skowronski <96924f7a4dbe24093bb2da18f50a76703cb4a362@mozy.com>
Reviewed-on: https://gerrit.dechocorp.com/59781
Reviewed-by: Jenkins <49695b0f9c673fd73dab0ff3f84b5ced9302cc6a@mozy.com>
Reviewed-by: Mat Bess <dfe39b5158a9deb38e96832be0cc702a0cfc7a27@mozy.com>

adfin/mordor,mozy/mordor,mtanski/mordor,mtanski/mordor,mozy/mordor,adfin/mordor,mozy/mordor,adfin/mordor,mtanski/mordor