depot/Makefile.in: put file in the $(DESTDIR)/etc directory.

Without this fix, "make install DESTDIR=/a" have created a directory
called "/aetc" and inserted there rc.local.(imap,ptclient).
Bug 3789: don't build timsieved and notifyd upon --disable-server

The problem does not appear in 2.5/master .

The man pages of the server components are still installed.
Bug#3790: make sieveshell aware of the Response Codes in RFC5804#1.3

With commit 2c352f1a8319d4474c684a07aa25488c4640c29b
     Author: Bron Gondwana <brong@opera.com>
     Date:   Tue Aug 9 22:07:48 2011 +0200

         Bug #3492 - timsieved response codes

timsieved started producing more detailed response codes, as of RFC5840,
Section 1.3. Response Codes, and sieveshell was not able to parse them.

-- Raname RPARAN to RPAREN (as it means Right PARAENthesis)
Bug#3800: cyrusdb_flat: fix corner case where keylen==savebuflen

(==40).  In this case, the size of savebuf is not increased and
  savebuf[keylen] = '\0'
failes.

The code snipped with the fix (and the problem) does not appear on
master:lib/cyrusdb_flat, so probably the error is just for 2.4.x .