select(). If you think this is too ugly, feel free to revert...

(chose 5 arbitrarily)

Deleted broken/unused FD_MANUAL_COPY code

an array like winsock does. That would speed up response time for small
number of connections with large FD_SETSIZE, but probably equalize out
as the number of active connections goes up. ??

with ldapi:// sessions.

frontend stuff moved into a database structure, essentially to allow overlays to be processed before database selection; passes all tests (ITS#3080)

off by default.  Option assignment is temporary, should be replaced
with "-o slp=<ON|off>".
Based upon patch submitted by Ralf Haferkamp (SuSE).

Needs identity mapping and proxy authorization support

Restructure syncrepl/persist to use outbound connection manager.