* app/gimpdrawable.c: gave parasite undo a MISC_UNDO class for now
so it compiles

* app/tools_cmds.c: fix crop invoker to give correct args to
crop_image

* app/color_cmds.c: s/GRAY/GRAY_LUT/g;

* app/brush_select.[ch]: removed PDB procs, export brush_active_dialogs,
brush_select_dialog, s/active_dialogs/brush_active_dialogs/

* app/gimage_cmds.[ch]
* app/channel_ops.[ch]: removed channel ops PDB procs, moved duplicate
function from gimage_cmds to channel_ops, export offset and duplicate

* app/gimpbrushlist.[ch]: removed PDB procs

* app/gradient.[ch]: removed PDB procs,

* app/gradient_header.h: exported G_SAMPLE, GradSelect, num_gradients,
grad_active_dialogs, gradient_select_dialog

* app/gradient_select.c: removed PDB procs,
s/active_dialogs/grad_active_dialogs/

* app/patterns.[ch]: removed PDB procs

* app/pattern_select.[ch]: removed PDB procs,
s/active_dialogs/pattern_active_dialogs/

* app/procedural_db.c: removed PDB procs and support...