2008-03-06  Thomas Thurman  <tthurman@gnome.org>

        Part three of the great prefs refactor, this time
        dealing with string preferences.  (This was the most
        complicated part, and has been especially tested and
        valground before committing.  As ever, though, let us
        know if you find a problem.)

        * src/core/prefs.c (MetaStringPreference): new struct.  
        * src/core/prefs.c (update_*): replaced with *_handler  
        * src/core/prefs.c (meta_prefs_init): uses new string prefs
          init; uses array of gconf dirs to monitor rather than 
          repeating code.
        * src/core/prefs.c (handle_preference_init_enum): tidying
        * src/core/prefs.c (change_notify): uses new string prefs  


svn path=/trunk/; revision=3624