some XEmacs functions

[Daiki Ueno]

$B:G6a!"$$$/$D$+(B APEL $B$KM_$7$$4X?t$,$"$k$N$G$9$,!"(B
$BF~$l$F$7$^$C$F$b9=$o$J$$$G$7$g$&$+!)(B

;; $BH?BP$,L5$1$l$P(B commit $B$7$^$9!"$H ＠ k8@$9$k$+!"(B
;; private branch $B$r:n$C$F$7$^$C$?$[$&$,NI$$$N$+$bCN$l$^$;$s$,!#!#(B

$B6qBNE*$K$O!"(B

set-extent-propert*ies* (cf. [apel-ja / No.00304])
directory-files $B$N(B FILES-ONLY $B0z?t(B
save-selected-frame
timer $B4XO"(B (XEmacs 20 $BMQ(B)

$B$J$I$,$"$j$^$9!#(B
-- 
Daiki Ueno