Bug fixes for the Appearance and Key Bindings tabs in the 
Edit Profile dialog:

* Fix selection of color schemes and key bindings not being
  remembered after the color scheme/key binding list is changed
  (eg. due to adding a new color scheme or editing an existing one).

  This also fixes the preview not being updated when mousing outside 
  the list after adding a new color scheme.

  -> After updates to the color scheme / key bindings list the model
     was being deleted and a new model was created.  This caused the
     selection model to be changed without the signal-slot connections
     from the selection model to the dialog being re-established.

     This commit changes that so that the model is not replaced but
     simply cleared when the color scheme / key binding list is updated.

* Disable the Edit, Remove buttons on the Appearance and 
  Key Bindings tabs when there is no selection.
* Fix crash when clicking 'New' button on the Appearance tab
  if the color scheme list is empty.
* Fix crash when loading the Appearance tab if the color scheme
  associated with the profile does not exist
* Fix crash when loading the Key Bindings tab if the key binding
  associated with the profile does not exist
* Fix crash when attempting to load a color scheme with no name, 
  instead the color scheme is simply not loaded.
* Fix all colors except one being set to black when making changes 
  to a color scheme which was based on the default fallback color scheme.

  -> When creating a new array inside the ColorScheme class to hold color
     entries, initialize its elements with values from the default color
     array.

* Use qWarning() instead of qDebug() to print out error message if attempting
  to delete a color scheme fails.

* Minor formatting changes in Session.cpp,SessionController.h


Known bugs introduced by this commit:
    
* Attempting to create a new keyboard translator when no existing translator
  is selected will crash because KeyboardTranslator::defaultTranslator() has
  not been implemented yet.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=746071