- gimp_container_tree_view_prepend_toggle_cell_renderer() to
gimp_container_tree_view_add_toggle_cell()
- gimp_container_tree_view_prepend_cell_renderer() to
gimp_container_tree_view_add_renderer_cell()
because "prepend" is an implementation detail, "renderer" is obsolete,
and in the second case it's not "cell renderer" but really a "renderer
cell".
Rename gimptoolview.[ch] to gimptooleditor.[ch]. The contents of the
file has already gone through this change, we do the file name change
separately for better diffs. Part of fix for bug #500930.
