* src/prefs_folder_item.c
use macro to assign strings that always frees the old string
* src/gtk/gtkaspell.[ch]
add gtkaspell_set_dictionary_menu_active_item() to set active
item in dictionary option menu
* src/prefs_spelling.c
use gtkaspell_set_dictionary_menu_active_item() to select
dictionary
* src/gtk/Makefile.am
* src/gtk/colorsel.[ch] ** NEW **
create a color selection dialog that can be used as a simple
function call with it's own gtk main loop like filesel.[ch]
* src/Makefile.am
* src/main.c
* src/prefs_common.c
* src/prefs_spelling.[ch] ** NEW **
* src/prefs_spelling.glade ** NEW **
* src/gtk/gtkutils.[ch]
move "Spell Checker" prefs to new prefs dialog
* src/prefs_folder_item.c
use new colorsel dialog