(move-to-left-margin): Never move past left-margin, even in funny
justify modes.
(set-left-margin): include following whitespace.
(set-left-margin, increase-left-margin): indent rigidly.
(increase-left-margin): allow negative left-margins
(increase-right-margin): allow negative right-margin
(beginning-of-line-text): new fn.
(fill-region-as-paragraph): don't delete hard newlines. ignore whitespace
at beginning of region. Remove justification indentation.
(fill-region): Don't use paragraph-movement commands when use-hard-newlines
is true, just search for hard newlines.
(current-justification): take care at EOB.
(set-justification): new argWHOLE-PAR. Callers changed.
(justify-current-line): Error if JUSTIFY arg is not reasonable.
Better interaction if there is a fill-prefix.
"Line too long" warning removed.
(unjustify-current-line, unjustify-region): New functions.
savetok.valid. Mark token as valid when it is initialised.
(make_tag): Make token only if token is valid and reset validity.
(CNL_SAVE_DEFINEDEF): Test for savetok.valid instead of token_saved.
(TOKEN): Added a new member: valid.
(kbd_buffer, kbd_fetch_ptr, kbd_store_ptr): Likewise.
(read_char_perdisplay): New var.
(read_char): Search all appropriate perdisplay objects, and do the right thing
if the next event comes from a different source.
(read_key_sequence): If there's a change of display in mid-stream, retreat and
try reading the new display.
(find_active_event_queue): Function deleted. All callers changed to just test
the main kbd_buffer instead.
(kbd_buffer_store_event): Write to the main kbd_buffer again.
(kbd_buffer_get_event): Read from the main kbd_buffer again.
Now returns a perdisplay pointer in addition to a lispy event.
(Fdiscard_input, swallow_events): Use the main kbd_buffer again.
(stuff_buffered_input): Likewise.
(init_perdisplay): Initialize member kbd_queue.
Remove references to obsolete members.
(wipe_perdisplay): Remove obsolete reference.
(init_keyboard, syms_of_keyboard): Restore initialization of vars.
(rmail-summary-reply, rmail-summary-retry-failure)
(rmail-summary-forward, rmail-summary-resend): Switch to rmail
buffer's window first, so mail buffer replaces summary.
(change_frame_size): If f is termcap frame, change size of all of them.
(remake_frame_glyphs): No longer static.
Don't mark nonselected termcap frame as garbaged.
(syms_of_frame): defsubr it.
(make_terminal_frame): Init Vframe_list only the first time.
Set visible and async_visible directly.
(redisplay): Don't display nonselected terminal frames.
