Auto merge of #429 - xinchuantao:master, r=badboy
Auto merge of #429 - xinchuantao:master, r=badboy

using new version libevent

jinguoli/hiredis,charsyam/hiredis,thomaslee/hiredis,redis/hiredis,thomaslee/hiredis,redis/hiredis,jinguoli/hiredis,charsyam/hiredis,jinguoli/hiredis,redis/hiredis