Add optional casts to free() calls.  (Jack) Set Tk variable argv0 to classname passed in to Tkapp_New.  (Fred)
Add optional casts to free() calls.  (Jack)
Set Tk variable argv0 to classname passed in to Tkapp_New.  (Fred)

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator