[crash] dialog function(s) missing

Hi Adam,

On adding a favorite, freevo crashes when the favorite is saved. See the
trace below. The method dialog.show_working_indicator() is not available.
After removing the call to this method from favoriteitem.py, a new error
about the hide() method appears (see second log).

(see also
https://sourceforge.net/tracker/?func=detail&atid=446895&aid=2812998&group_id=46652)

Richard.

First log:

Traceback (most recent call last):
  File "/home/freevodev/work/freevo-svn/freevo/src/main.py", line 299, in
eventhandler
    consumed = app.eventhandler(event)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 856, in
eventhandler
    self._handle_play_item(menu, event)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 661, in
_handle_play_item
    action(arg=arg, menuw=self)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 106, in
select
    self.function(arg=self.arg, menuw=menuw)
  File "/home/freevodev/work/freevo-svn/freevo/src/tv/favoriteitem.py", line
321, in save_changes
    pop = dialog.show_working_indicator(msgtext)
AttributeError: 'module' object has no attribute 'show_working_indicator'
app=<gui.ConfirmBox.ConfirmBox instance at 0xa9fb26c> context='menu'

Second log:

Traceback (most recent call last):
  File "/home/freevodev/work/freevo-svn/freevo/src/main.py", line 299, in
eventhandler
    consumed = app.eventhandler(event)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 856, in
eventhandler
    self._handle_play_item(menu, event)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 661, in
_handle_play_item
    action(arg=arg, menuw=self)
  File "/home/freevodev/work/freevo-svn/freevo/src/menu.py", line 106, in
select
    self.function(arg=self.arg, menuw=menuw)
  File "/home/freevodev/work/freevo-svn/freevo/src/tv/favoriteitem.py", line
340, in save_changes
    pop.hide()
AttributeError: 'NoneType' object has no attribute 'hide'


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