InterfaceWM Mini-Updates

[copal]

All,

  A couple of minor Interface updates:

1. A lot of code changes in CVS.  Mostly much-needed cleanup.
2. GNUstep application compatibility cleaned up, but now pukes on app 
exit.
3. Interface is now listed on freedesktop.org's compatibility list:

                        http://www.freedesktop.org/Standards/wm-spec

4. Interface is *not* dead, contrary to popular belief.  It's very 
alive, just not _released_ as often as it should be.  CVS tends to be 
the best way to keep track of it for now.

- Ian