Fixed several crashes due to Hashtable -> Dictionary work
Fixed several crashes due to Hashtable -> Dictionary work

Hashtables will return a null if it doesn't contain a
valid key.  Dictionaries, however, throw a null key
exception.

NguyenMatthieu/f-spot,mans0954/f-spot,Yetangitu/f-spot,Yetangitu/f-spot,mans0954/f-spot,GNOME/f-spot,mans0954/f-spot,mans0954/f-spot,mono/f-spot,dkoeb/f-spot,dkoeb/f-spot,NguyenMatthieu/f-spot,dkoeb/f-spot,dkoeb/f-spot,mono/f-spot,Sanva/f-spot,mans0954/f-spot,NguyenMatthieu/f-spot,mono/f-spot,mono/f-spot,Yetangitu/f-spot,mono/f-spot,mono/f-spot,GNOME/f-spot,Yetangitu/f-spot,Sanva/f-spot,mans0954/f-spot,Sanva/f-spot,Yetangitu/f-spot,dkoeb/f-spot,GNOME/f-spot,GNOME/f-spot,NguyenMatthieu/f-spot,Sanva/f-spot,dkoeb/f-spot,GNOME/f-spot,Sanva/f-spot,NguyenMatthieu/f-spot