rename set_cursor_pos to set_cursor_location in GtkInputContext class

rename set_cursor_pos to set_cursor_location in GtkInputContext class

2001-03-15  HideToshi Tajima  <tajima@happy>

        * modules/input/gtkimcontextxim.c (gtk_im_context_xim_set_cursor_locat
ion):
        * gtk/gtkimmulticontext.c (gtk_im_multicontext_set_cursor_location):
        * gtk/gtkentry.c (update_im_cursor_location):
        * gtk/gtkimcontext.c (gtk_im_context_set_cursor_location):
        * gtk/gtkimcontext.h (struct _GtkIMContextClass): rename
        set_cursor_pos to set_cursor_location in GtkInputContext class