confuse somebody).

to add a simple mutex.  Should be two (proto-slap.h & init.c).

 * slapd aclgroup deadlock bug fix
 * slapd non-authorized add bug fix

thread shutdown codes.

to resolve ITS#23.
Update CHANGES & build/version in preparation for OpenLDAP 1.1.2.

  Plug some memory leaks
  Change overlapping `strcpy( x, y )' to `SAFEMEMCPY( x, y, strlen( y ) + 1 )'

Update CHANGES with ITS numbers.