master updated (bce3d89 -> ac121d8)

[Paul Eggert]

eggert pushed a change to branch master.

      from  bce3d89   Remove XEmacs compat code from allout.el
       new  c1b6d5c   Improve performance when a string's byte count changes
       new  ac121d8   Make Faset nonrecursive


Summary of changes:
 src/alloc.c | 63 ++++++++++++++++++++++++++++++++++++++++++----------------
 src/data.c  | 66 +++++++++++++++++++++++--------------------------------------
 src/lisp.h  |  3 +--
 3 files changed, 72 insertions(+), 60 deletions(-)