Log Message:
Update to 1.4.5:

Changes in 1.4.5-stable:
 o Fix connection keep-alive behavior for HTTP/1.0
 o Fix use of freed memory in event_reinit; pointed out by Peter Postma
 o Constify struct timeval * where possible; pointed out by Forest Wilkinson
 o allow min_heap_erase to be called on removed members; from liusifan.
 o Rename INPUT and OUTPUT to EVRPC_INPUT and EVRPC_OUTPUT.  Retain INPUT/OUTPUT \ 
aliases on on-win32 platforms for backwards compatibility.
 o Do not use SO_REUSEADDR when connecting
 o Fix Windows build
 o Fix a bug in event_rpcgen when generated fixed-sized entries

Changes in 1.4.4-stable:
 o Correct the documentation on buffer printf functions.
 o Don't warn on unimplemented epoll_create(): this isn't a problem, just a \ 
reason to fall back to poll or select.
 o Correctly handle timeouts larger than 35 minutes on Linux with epoll.c.  This \ 
is probably a kernel defect, but we'll have to support old kernels anyway even \ 
if it gets fixed.
 o Fix a potential stack corruption bug in tagging on 64-bit CPUs.
 o expose bufferevent_setwatermark via header files and fix high watermark on read
 o fix a bug in bufferevent read water marks and add a test for them
 o introduce bufferevent_setcb and bufferevent_setfd to allow better \ 
manipulation of bufferevents
 o use libevent's internal timercmp on all platforms, to avoid bugs on old \ 
platforms where timercmp(a,b,<=) is buggy.
 o reduce system calls for getting current time by caching it.
 o fix evhttp_bind_socket() so that multiple sockets can be bound by the same \ 
http server.
 o Build test directory correctly with CPPFLAGS set.
 o Fix build under Visual C++ 2005.
 o Expose evhttp_accept_socket() API.
 o Merge windows gettimeofday() replacement into a new evutil_gettimeofday() \ 
function.
 o Fix autoconf script behavior on IRIX.
 o Make sure winsock2.h include always comes before windows.h include.