Update xscreensaver to version 5.32

* Update to latest version of xscreensaver
* Set correct license (all screensavers in this package are BSD licensed)
* Rearrange screensavers to be in the same order Finder sorts them in to
  make it easier to see which ones have been added/removed in the future
Merge pull request #7909 from jarinudom/xscreensaver

Update xscreensaver to version 5.32