* Initial draft of dialogs to manage sessions
    - SessionTypeDialog lists available session types and allows the
      user to trigger creation, editing or removal of a type.
    - EditSessionDialog allows the user to edit an individual session
      type.
* Remove access to the old KDE 3 preferences dialog
* Began a re-write of the Konsole part, the intention is to avoid
  the duplication of code between the part and the main application
  which occurred in KDE 3 and also to make more of the functionality
  from the main application available to the part's clients.
* Implement the history size dialog
* Implement SSH bookmarks
* Implement Bookmark Tabs as Folders
* Allow the user to choose which sessions are shown in the 'File' menu
* Implement 'background mode'.  When Konsole is started in this mode
  (by running "konsole --background-mode") it creates a new session in the 
  background which can be displayed or hidden at any time by pressing F12.
  Idea taken from Yakuake. 
* Use tab bar rather than a tab widget for the view container by default,
  removes the frame around the terminal display, this does not look correct
  if you are using the ported-from-3.5 KDE "Plastik" style in KDE 4.  
  Qt's very-similar-looking Platique style produces the desired results. 
* Fixed two spectacular memory leaks.
* Add option to split the view left/right ( in addition to top/bottom ) and
  allow more than two views open at once.  Dividing the view into a grid
  ( aka. "recursive splitting" ) is not yet supported.  
* Add menu options to Close Active View and Close Others ( which closes 
  all views except the active one )

// Behind the scenes stuff

* Rewrote color scheme code
    ColorSchema -> ColorScheme
    ColorSchemaList -> replaced with global ColorSchemeManager
    KDE 4 INI-format color schemes are used if available with fallback to the KDE 3
    .schema files otherwise.
    * Some more Qt 3 -> 4 porting:
    Q3TextEdit -> QTextEdit
    Q3IntDict<V> -> QHash<int,V>
    Q3PtrList<T> -> QList<T*>
* Various adjustments to resource loading so that the various
  *Manager classes can find their resources when being used in
  an application other than Konsole ( eg. when being used in a part )
* Change access to singleton managers, the *Manager classes
  now have an instance() method to access the global instance and
  a setInstance() method which is called by the Application or KPart
  constructor to create the manager initially.
* Remove all references to MainWindow from the ViewManager and move 
  the relevant code to the MainWindow class itself.  

svn path=/branches/work/konsole-split-view/; revision=654402