Version bump.


git-svn-id: svn://svn.nginx.org/nginx/trunk@5184 73f98a42-aea0-e011-b76d-00259023448c
nginx-1.4.0-RELEASE


git-svn-id: svn://svn.nginx.org/nginx/trunk@5185 73f98a42-aea0-e011-b76d-00259023448c