URL: http://www.monkey.org/~provos/libevent/
     http://www.monkey.org/~provos/libevent-1.4.13-stable.tar.gz
Version: 1.4.13
License: BSD

Local Modifications:
Rather than use libevent's own build system, we just build a Chrome
static library using GYP.

1) Run configure and "make event-config.h" on a Linux and Mac box and
   copy config.h and event-config.h to linux/ and mac/ respectively.
2) Add libevent.gyp.
3) chromium.patch is applied to allow libevent to be used without
   being installed.
4) The directories WIN32-Code and WIN32-Prj are not included.
