Crash selecting "shapes" menu with Media panel selected

[Steven Sproat]

Results in this:

*** Sat Dec 19 00:44:59 2009 ***
Traceback (most recent call last):
  File "/usr/bin/whyteboard", line 863, in update_menus
    elif _id == ID_MOVE_UP and self.board.check_move("up"):
  File "/usr/lib/whyteboard/whyteboard.py", line 437, in check_move
    if self.shapes.index(self.selected) != length:
ValueError: list.index(x): x not in list

*** Sat Dec 19 00:45:02 2009 ***
Traceback (most recent call last):
  File "/usr/bin/whyteboard", line 865, in update_menus
    elif _id == ID_MOVE_DOWN and self.board.check_move("down"):
  File "/usr/lib/whyteboard/whyteboard.py", line 440, in check_move
    if self.shapes.index(self.selected) != 0:
ValueError: list.index(x): x not in list

Really stupid oversight on my behalf; forgot to change one line of code...sigh