(hs-toggle-hiding): New command.
(hs-mouse-toggle-hiding): Use `hs-toggle-hiding'.
(hs-minor-mode): Move call to `hs-grok-mode-type' early on.
Fix omission bug: Run `hs-minor-mode-hook' for both activation
and deactivation.
(Vecho_keystrokes) New variable.
(read_char, record_menu_key, read_key_sequence): Use it to allow use of
float value.
(syms_of_keyboard): Change Vecho_keystrokes declaration.
(gc_sweep): Don't unmark symbol names in pure space.
(toplevel): Include setjmp.h.
(PURE_POINTER_P): New define.
(enum mem_type) [GC_MARK_STACK]: New enumeration.
(Vdead) [GC_MARK_STACK]: New variable.
(lisp_malloc): Add parameter TYPE, call mem_insert if
GC_MARK_STACK is defined.
(allocate_buffer): New function.
(lisp_free) [GC_MARK_STACK]: Call mem_delete.
(free_float) [GC_MARK_STACK]: Set type to Vdead.
(free_cons) [GC_MARK_STACK]: Set car to Vdead.
(stack_base, mem_root, mem_z) [GC_MARK_STACK]: New variables.
(MEM_NIL) [GC_MARK_STACK]: New define.
(struct mem_node) [GC_MARK_STACK]: New structure.
(mem_init, mem_find, mem_insert, mem_delete, mem_insert_fixup)
(mem_delete_fixup, mem_rotate_left, mem_rotate_right)
(live_string_p, live_cons_p, live_symbol_p, live_float_p)
(live_misc_p, live_vector_p, live_buffer_p, mark_memory)
(mark_stack) [GC_MARK_STACK]: New functions.
(Fgarbage_collect) [GC_MARK_STACK]: Call mark_stack.
(clear_marks): Removed.
(gc_sweep): Set free conses' car, free floats' type, free
symbols' function to Vdead. Use lisp_free to free buffers.
(init_alloc_once): Initialize Vdead.
(survives_gc_p): Return non-zero for pure objects.
Add comments throughout the file.
(describe-language-environment-map, set-coding-system-map)
(setup-language-environment-map): Convert to new (menu-item...
form, add help strings. Change names of menu items for better
clarity. "Mule" menu-bar item removed (it's now in the "Options"
submenu).
(set-face-attribute): Purecopy args.
(read-face-name): Default to name at point and use it in prompt.
Remove colon from arg in all callers.
(list-faces-display): Hyperlink to face descriptions and customize
buffers.
