It's especially important to allow KolourPaint/KDE3 to run under KDE 4.0
since it's far better tested than KolourPaint/KDE4 will be.

* Rename kolourpaint executable -> kolourpaint4
  [so that the user doesn't have to dig up the full path]

* Rename libkolourpaint_lgpl -> libkolourpaint4_lgpl
  [not needed but done just for future-proofing]

* Rename kolourpaint.desktop -> kolourpaint4.desktop
  [not really required but done for consistency with executable name]
  - Also update.desktop to point to the renamed executable

* Rename kolourpaintui.rc > kolourpaint4ui.rc
  [so that neither version of KolourPaint picks up the wrong toolbar/menus]

* Share $KDEHOME/share/config/kolourpaintrc between KDE4 and KDE3:
  - Changes:
    - Prefix all config groups with "KolourPaint4"
    - Prefix toolbar names with "KolourPaint4" for config-autosaving
    - Point to kolourpaint4ui.rc
  - Problems:
    - We can't prefix "KFileDialog Settings"
    - Sharing a config file between 2 generations of KDE is insane and error-prone
  - Due to complexity of this, I'm going to revert this part of the patch
    and use a far easier method: change the KAboutData name of the app

* Directories are unchanged


svn path=/trunk/KDE/kdegraphics/kolourpaint/; revision=718651