types: add len func for urlmaps
types: add len func for urlmaps

fgbreel/etcd,iamqizhao/etcd,li-ang/etcd,gyuho/etcd,tguangch/etcd,imzhulei/etcd,fgbreel/etcd,bdarnell/etcd,iamqizhao/etcd,heyitsanthony/etcd,li-ang/etcd,ajityagaty/etcd,jefby/etcd,gae123/etcd,Winslett/etcd,hongchaodeng/etcd,betawaffle/etcd,cognusion/etcd,steveeJ/etcd,swingbach/etcd,xdlinear/etcd,oscarrr110/etcd,bluebreezecf/etcd,glycerine/etcd,linuxcer/etcd,yyljlyy/etcd,buaazp/etcd,devfreesg/etcd,OyTao/etcd_learning,mqliang/etcd,buaazp/etcd,hongchaodeng/etcd,asim/etcd,cockroachdb/etcd,njharman/etcd,dannysauer/etcd,spacejam/etcd,jeremyeder/etcd,endocode/etcd,lorneli/etcd,mickep76/etcd,heyitsanthony/etcd,lumjjb/etcd,arthurcolle/etcd,chenbaihu/etcd,jlamillan/etcd,spacejam/etcd,insionng/etcd,wowsoso/etcd,sayden/etcd,raoofm/etcd,shawnps/etcd,shawnps/etcd,insequent/etcd,openedbox/etcd,hongbinz/etcd,akauppi/etcd,njucslqq/etcd,YuleiXiao/etcd,mike-lerch/etcd,mqliang/etcd,coreos/etcd,kkaneda/etcd,cognusion/etcd,tangkun75/etcd,shafreeck/etcd,Yhgenomics/etcd,jeremyeder/etcd,sebrandon1/etcd,a-robinson/etcd,lumjjb/etcd,steveeJ/etcd,honeyqa/etcd,coreos/etcd,combk8s/etcd,zaphod-concur/etcd,visheshnp/etcd,etcd-io/etcd,insequent/etcd,gyuho/etcd,sinsharat/etcd,shakefu/etcd,rchicoli/etcd,SivagnanamCiena/etcd,lorneli/etcd,rchicoli/etcd,lzbgt/etcd,dnaeon/etcd,fasaxc/etcd,ktateish/etcd,cchamplin/etcd,whuwxl/etcd,mkumatag/etcd,purpleidea/etcd,nkhare/etcd,jchauncey/etcd,zaphod-concur/etcd,wantonsolutions/dinv-etcd,tempbottle/etcd,njucslqq/etcd,imzhulei/etcd,xychu/etcd,kingland/etcd,yichengq/etcd,a-robinson/etcd,sebrandon1/etcd,jefby/etcd,msanterre/etcd,StorReduce/etcd,rnaveiras/etcd,dannysauer/etcd,vimalk78/etcd,fasaxc/etcd,westhood/etcd,axingblog/etcd,handsomesun/etcd,linuxcer/etcd,yudai/etcd,SivagnanamCiena/etcd,polvi/etcd,TheHippo/etcd,sebschrader/etcd,jonboulle/etcd,purpleidea/etcd,visheshnp/etcd,nekto0n/etcd,mitake/etcd,onlyjob/etcd,siddontang/etcd,handsomesun/etcd,Yhgenomics/etcd,fasaxc/etcd,shakefu/etcd,akauppi/etcd,tempbottle/etcd,xiang90/etcd,dnaeon/etcd,Eagle-X/etcd,HideoYamauchi/etcd,pauldallen/etcd,yichengq/etcd,mkumatag/etcd,junxu/etcd,es-chow/etcd,sebschrader/etcd,xiang90/etcd,pauldallen/etcd,Eagle-X/etcd,snailwalker/etcd,kingland/etcd,siddontang/etcd,jlamillan/etcd,sofuture/etcd,elimisteve/etcd,polvi/etcd,jravetch/etcd,tamird/etcd,fanminshi/etcd,luxas/etcd,sayden/etcd,svdata/etcd,sinsharat/etcd,gouyang/etcd,nkhare/etcd,yudai/etcd,etcd-io/etcd,princeqjzh/etcd,achanda/etcd,hongbinz/etcd,honeyqa/etcd,tguangch/etcd,YuleiXiao/etcd,armstrongli/etcd,xychu/etcd,youxidev/etcd,wowsoso/etcd,youxidev/etcd,onlyjob/etcd,jonboulle/etcd,njharman/etcd,wantonsolutions/dinv-etcd,dalanlan/etcd,qqsun8819/etcd,ajityagaty/etcd,mickep76/etcd,qqsun8819/etcd,ravigadde/etcd,freeloop1114/etcd,beni55/etcd,mike-lerch/etcd,giantswarm/etcd,plasticbox/etcd,OyTao/etcd_learning,betawaffle/etcd,oscarrr110/etcd,StorReduce/etcd,gouyang/etcd,Timer/etcd,TheHippo/etcd,glycerine/etcd,mitake/etcd,Timer/etcd,insionng/etcd,nekto0n/etcd,joshix/etcd,luxas/etcd,tamird/etcd,svdata/etcd,HideoYamauchi/etcd,elimisteve/etcd,sofuture/etcd,westhood/etcd,cockroachdb/etcd,msanterre/etcd,lzbgt/etcd,glevand/coreos--etcd,cchamplin/etcd,vimalk78/etcd,dalanlan/etcd,arthurcolle/etcd,jravetch/etcd,tangkun75/etcd,achanda/etcd,endocode/etcd,fanminshi/etcd,shafreeck/etcd,hroyrh/etcd,chenbaihu/etcd,beni55/etcd,gityf/etcd,asim/etcd,gae123/etcd,mqliang/etcd,freeloop1114/etcd,ktateish/etcd,improbable-io/etcd,wfxiang08/etcd,ravigadde/etcd,glevand/coreos--etcd,chipironcin/etcd,jchauncey/etcd,plasticbox/etcd,rnaveiras/etcd,gityf/etcd,ajityagaty/etcd,wantonsolutions/dinv-etcd,xdlinear/etcd,offscale/etcd,raoofm/etcd,yyljlyy/etcd,improbable-io/etcd,Winslett/etcd,es-chow/etcd,hroyrh/etcd,kkaneda/etcd,chipironcin/etcd,junxu/etcd,combk8s/etcd,devfreesg/etcd,whuwxl/etcd,bluebreezecf/etcd,mkumatag/etcd,princeqjzh/etcd,CrazyJvm/etcd,axingblog/etcd,offscale/etcd,snailwalker/etcd,delkyd/etcd,giantswarm/etcd,openedbox/etcd,rnaveiras/etcd,swingbach/etcd,armstrongli/etcd,joshix/etcd,bdarnell/etcd,delkyd/etcd,CrazyJvm/etcd,wfxiang08/etcd,etcd-io/etcd