* Bug fixes and enhancements in the Gtk+/Gnome interfaces.

   o the slider should behave correctly and stop jumping here and
     there (this bug is _not_ related to Stef's similar bug)
   o added an "open network" menu (useless since the input doesn't
     handle it properly yet)
   o tried to reorganize gnome_callbacks.c and gtk_callbacks.c
   o stream date is now displayed instead of percentage
   o renamed gnome_sys.h to intf_gnome.h, and gtk_sys.h to intf_gtk.h

  * Changed documentation and package creation files.

   o added versioned conflicts/replaces to vlc-gtk (Closes Debian bug #88796)
   o removed useless or outdated documentation from doc/*
   o moved vlc.1 manpage from debian/vlc.1 to doc/vlc.1

  * Added basic Qt interface.

   o working features: slide bar, open file, toolbar, popup menu
   o added "qvlc" alias, equivalent to "vlc -I qt"
   o known issues : no "open disc" or "open network" menus yet
                    the IntfWindow class is never cleaned on destruction
                    the popup menu always pop at the middle of the screen

  * Misc fixes/updates.

   o renamed netutils.h functions from input_* to network_*
   o renamed *plst* files and functions to *playlist* (it was stupid
     from me to name them "plst")
   o made a few input error messages more meaningful
   o added -I, -A and -V short flags, corresponding to --intf, --audio
     and --video

    I got a lot of conflicts on this commit, lart me if I forgot a
  file or made old bugs reappear.