bump perks
bump perks

mostly for the perf improvementsin https://github.com/bmizerany/perks/pull/7

benchmark                               old ns/op     new ns/op     delta
BenchmarkQuery                          691           97.5          -85.89%
BenchmarkQuerySmallEpsilon              44491         6500          -85.39%
BenchmarkInsertBiasedSmallEpsilon       2641          914           -65.39%
BenchmarkInsertTargetedSmallEpsilon     1016          442           -56.50%
BenchmarkInsertBiased                   324           172           -46.91%
BenchmarkInsertTargeted                 294           171           -41.84%

w4ngyi/nsq,moander/nsq,jlr52/nsq,jlr52/nsq,rpau/nsq,wmydz1/nsq,xiexingguang/nsq,mashuai/nsq,CrazyJvm/nsq,propellerads/nsq,ShinichR/nsq,propellerads/nsq,bo406/nsq,yh453926638/nsq,kevinc0825/nsq,chaosue/nsq,pombredanne/nsq,nsqio/nsq,xiexingguang/nsq,rpau/nsq,jehiah/nsq,myhongkongzhen/nsq,mikeqian/nsq,lcp0578/nsq,gaowenbin/nsq,gaowenbin/nsq,beni55/nsq,chaosue/nsq,mreiferson/nsq,jmptrader/nsq,sparklxb/nsq,jlr52/nsq,gaowenbin/nsq,nsqio/nsq,beni55/nsq,szqh97/nsq,szqh97/nsq,philipbo/nsq,nsqio/nsq,propellerads/nsq,coderhaoxin/nsq,kevinc0825/nsq,mikeqian/nsq,judwhite/nsq-0.3.2-win,lcp0578/nsq,mikeqian/nsq,qinlodestar/nsq,MadBomber/nsq,qinlodestar/nsq,youxidev/nsq,absolute8511/nsq,seanluo/nsq_with_note,OlafRadicke/nsq,mikedewar/nsq,judwhite/nsq-0.3.2-win,CrazyJvm/nsq,qinlodestar/nsq,ShinichR/nsq,OlafRadicke/nsq,bitly/nsq,mikedewar/nsq,jmptrader/nsq,youxidev/nsq,qinlodestar/nsq,OlafRadicke/nsq,handsomesun/nsq,mikedewar/nsq,ShinichR/nsq,mashuai/nsq,rpau/nsq,Dieterbe/nsq,moander/nsq,ShinichR/nsq,CrazyJvm/nsq,mreiferson/nsq,magastzheng/nsq,handsomesun/nsq,coderhaoxin/nsq,philipbo/nsq,szqh97/nsq,myhongkongzhen/nsq,kesutton/nsq,nieanan/nsq,gaowenbin/nsq,Dieterbe/nsq,handsomesun/nsq,philipbo/nsq,mashuai/nsq,19hz/nsq,wuxu92/nsq,w4ngyi/nsq,MadBomber/nsq,nsqio/nsq,jmptrader/nsq,bitly/nsq,absolute8511/nsq,svmehta/nsq,beni55/nsq,chaosue/nsq,bitly/nsq,bo406/nsq,svmehta/nsq,CrazyJvm/nsq,19hz/nsq,wmydz1/nsq,myhongkongzhen/nsq,absolute8511/nsq,ploxiln/nsq,msn217/nsq,yh453926638/nsq,msn217/nsq,coderhaoxin/nsq,nieanan/nsq,xiexingguang/nsq,magastzheng/nsq,seanluo/nsq_with_note,msn217/nsq,chrislusf/nsq,kesutton/nsq,sparklxb/nsq,mreiferson/nsq,mikeqian/nsq,gaowenbin/nsq,wuxu92/nsq,w4ngyi/nsq,wmydz1/nsq,absolute8511/nsq,qinlodestar/nsq,kesutton/nsq,handsomesun/nsq,ploxiln/nsq,w4ngyi/nsq,xuzhaokui/nsq,Dieterbe/nsq,msn217/nsq,bitly/nsq,kesutton/nsq,myhongkongzhen/nsq,CrazyJvm/nsq,coderhaoxin/nsq,jlr52/nsq,xiexingguang/nsq,rpau/nsq,msn217/nsq,philipbo/nsq,sparklxb/nsq,kesutton/nsq,MadBomber/nsq,pombredanne/nsq,xiexingguang/nsq,magastzheng/nsq,wuxu92/nsq,moander/nsq,Dieterbe/nsq,rpau/nsq,mashuai/nsq,ShinichR/nsq,xuzhaokui/nsq,chrislusf/nsq,jehiah/nsq,mikeqian/nsq,sparklxb/nsq,nieanan/nsq,19hz/nsq,yh453926638/nsq,szqh97/nsq,MadBomber/nsq,beni55/nsq,nsqio/nsq,handsomesun/nsq,yh453926638/nsq,kevinc0825/nsq,bo406/nsq,bo406/nsq,absolute8511/nsq,bo406/nsq,yh453926638/nsq,ploxiln/nsq,chaosue/nsq,szqh97/nsq,jehiah/nsq,lcp0578/nsq,bitly/nsq,chrislusf/nsq,w4ngyi/nsq,coderhaoxin/nsq,youxidev/nsq,beni55/nsq,lcp0578/nsq,jlr52/nsq,philipbo/nsq,mreiferson/nsq,chaosue/nsq,lcp0578/nsq,myhongkongzhen/nsq,jehiah/nsq,judwhite/nsq-0.3.2-win,MadBomber/nsq,mreiferson/nsq,sparklxb/nsq,wmydz1/nsq,mashuai/nsq,jehiah/nsq,wmydz1/nsq,ploxiln/nsq,ploxiln/nsq,xuzhaokui/nsq,Dieterbe/nsq