shadowsocks-libev 1.4.4 (new formula)

upstream: https://github.com/madeye/shadowsocks-libev
shadowsocks-libev 1.4.5
shadowsocks-libev: upstream updated, patch is obsolete for HEAD
shadowsocks-libev: refactor formula to follow house style
shadowsocks-libev: patch from commit url instead of inlined
shadowsocks-libev: add 1.4.5 bottle.