Log Message:
Update to libevent-1.4.3.
1.4.3-stable:
1.4.2-rc:
* make Solaris event subsystems more reliable; from W.C.A. Wijngaards
* event_base_get_method(); from Springande Ulv
* fix HTTP/1.1 chunk formatting; from "propanbutan"
* allow 64-bit content lengths; from Scott Lamb
* and more...
1.4.1-beta:
* fixed some memory leaks and other misc cleanup; from Christopher Layne,
  Scott Lamb and Charles Kerr
* introduced event_reinit to deal with fork()
* improved efficiency of generated RPC structure
* performance improvements to Win32 backend
* and many more...
1.4.0-beta:
* a new RPC subsytem for writing distributed clients and servers
* almost everything is documented via Doxygen now
* many fixes and improvements to evdns and evhttp
* libevent now builds two additional libraries: libevent_core (containing only
  the event core) and libevent_extras (contained evdns, evhttp and evrpc)
* performance improvements due to using a heap instead of red-black trees for
  timeouts
* Solaris' event ports are better supported
1.3e:
* Fix compilation on Solaris; from Magne Mahre
* Add a "Date" header to HTTP responses when it's missing, as required by
  HTTP 1.1. Original Patch from Ralph Moritz.
* Fix a memory leak in which failed HTTP connections whould not free the
  request object.
* Fix a memory leak in the DNS server.
* Handle NULL timeouts correctly on Solaris; from Trond Norbye
* Recalculate pending events properly when reallocating event array on
  Solaris; from Trond Norbye