Fixed memory leak in CachingResolver
Fixed memory leak in CachingResolver

Chenmxs/scrapy,pombredanne/scrapy,Lucifer-Kim/scrapy,raphaelfruneaux/scrapy,cleydson/scrapy,wangjun/scrapy,amboxer21/scrapy,jiezhu2007/scrapy,dhenyjarasandy/scrapy,gnemoug/scrapy,wangjun/scrapy,shaform/scrapy,pablohoffman/scrapy,famorted/scrapy,Geeglee/scrapy,wzyuliyang/scrapy,godfreyy/scrapy,dracony/scrapy,hansenDise/scrapy,ashishnerkar1/scrapy,Ryezhang/scrapy,redapple/scrapy,kashyap32/scrapy,irwinlove/scrapy,CodeJuan/scrapy,famorted/scrapy,haiiiiiyun/scrapy,scorphus/scrapy,pranjalpatil/scrapy,arush0311/scrapy,Ryezhang/scrapy,Parlin-Galanodel/scrapy,Digenis/scrapy,Digenis/scrapy,pawelmhm/scrapy,ssteo/scrapy,codebhendi/scrapy,OpenWhere/scrapy,rdowinton/scrapy,liyy7/scrapy,liyy7/scrapy,avtoritet/scrapy,yusofm/scrapy,Bourneer/scrapy,joshlk/scrapy,olorz/scrapy,raphaelfruneaux/scrapy,rahul-c1/scrapy,jamesblunt/scrapy,kalessin/scrapy,emschorsch/scrapy,WilliamKinaan/scrapy,kazitanvirahsan/scrapy,emschorsch/scrapy,gbirke/scrapy,avtoritet/scrapy,Bourneer/scrapy,agreen/scrapy,godfreyy/scrapy,wenyu1001/scrapy,starrify/scrapy,ssh-odoo/scrapy,ndemir/scrapy,coderabhishek/scrapy,rklabs/scrapy,GregoryVigoTorres/scrapy,scrapy/scrapy,cursesun/scrapy,johnardavies/scrapy,jamesblunt/scrapy,jeffreyjinfeng/scrapy,rolando/scrapy,foromer4/scrapy,mlyundin/scrapy,beni55/scrapy,kazitanvirahsan/scrapy,redapple/scrapy,chekunkov/scrapy,TarasRudnyk/scrapy,Cnfc19932/scrapy,dacjames/scrapy,hansenDise/scrapy,sigma-random/scrapy,finfish/scrapy,rolando/scrapy,dgillis/scrapy,barraponto/scrapy,olafdietsche/scrapy,nfunato/scrapy,mouadino/scrapy,Lucifer-Kim/scrapy,finfish/scrapy,csalazar/scrapy,csalazar/scrapy,Preetwinder/scrapy,amboxer21/scrapy,tliber/scrapy,kmike/scrapy,mgedmin/scrapy,kmike/scrapy,dhenyjarasandy/scrapy,nowopen/scrapy,CENDARI/scrapy,hyrole/scrapy,cyrixhero/scrapy,aivarsk/scrapy,fafaman/scrapy,URXtech/scrapy,shaform/scrapy,codebhendi/scrapy,profjrr/scrapy,WilliamKinaan/scrapy,eliasdorneles/scrapy,hansenDise/scrapy,foromer4/scrapy,pablohoffman/scrapy,devGregA/scrapy,yarikoptic/scrapy,jiezhu2007/scrapy,scorphus/scrapy,cursesun/scrapy,Cnfc19932/scrapy,Timeship/scrapy,stenskjaer/scrapy,rahulsharma1991/scrapy,nfunato/scrapy,ENjOyAbLE1991/scrapy,fontenele/scrapy,elacuesta/scrapy,jc0n/scrapy,songfj/scrapy,wenyu1001/scrapy,nett55/scrapy,Chenmxs/scrapy,Adai0808/scrapy-1,avtoritet/scrapy,CENDARI/scrapy,AaronTao1990/scrapy,GregoryVigoTorres/scrapy,URXtech/scrapy,nguyenhongson03/scrapy,ArturGaspar/scrapy,nikgr95/scrapy,jorik041/scrapy,aivarsk/scrapy,jc0n/scrapy,dgillis/scrapy,Slater-Victoroff/scrapy,rdowinton/scrapy,kimimj/scrapy,scrapy/scrapy,scrapy/scrapy,crasker/scrapy,ssteo/scrapy,zhangtao11/scrapy,profjrr/scrapy,zorojean/scrapy,github-account-because-they-want-it/scrapy,dacjames/scrapy,mlyundin/scrapy,umrashrf/scrapy,Djlavoy/scrapy,fafaman/scrapy,CENDARI/scrapy,crasker/scrapy,mouadino/scrapy,Partoo/scrapy,huoxudong125/scrapy,agusc/scrapy,coderabhishek/scrapy,hwsyy/scrapy,AaronTao1990/scrapy,heamon7/scrapy,rootAvish/scrapy,ndemir/scrapy,xiao26/scrapy,devGregA/scrapy,carlosp420/scrapy,Partoo/scrapy,chekunkov/scrapy,jc0n/scrapy,ylcolala/scrapy,taito/scrapy,kimimj/scrapy,hyrole/scrapy,haiiiiiyun/scrapy,cyberplant/scrapy,zhangtao11/scrapy,Allianzcortex/scrapy,fqul/scrapy,zhangtao11/scrapy,cursesun/scrapy,dangra/scrapy,agusc/scrapy,fpy171/scrapy,elacuesta/scrapy,irwinlove/scrapy,webmakin/scrapy,Djlavoy/scrapy,Preetwinder/scrapy,kmike/scrapy,Ryezhang/scrapy,rootAvish/scrapy,jeffreyjinfeng/scrapy,chekunkov/scrapy,eliasdorneles/scrapy,cleydson/scrapy,wzyuliyang/scrapy,zorojean/scrapy,jiezhu2007/scrapy,agreen/scrapy,curita/scrapy,mlyundin/scrapy,ArturGaspar/scrapy,agreen/scrapy,joshlk/scrapy,snowdream1314/scrapy,dangra/scrapy,ramiro/scrapy,taito/scrapy,tntC4stl3/scrapy,ENjOyAbLE1991/scrapy,jdemaeyer/scrapy,rklabs/scrapy,nguyenhongson03/scrapy,kashyap32/scrapy,mgedmin/scrapy,Allianzcortex/scrapy,dhenyjarasandy/scrapy,zorojean/scrapy,fontenele/scrapy,Partoo/scrapy,yidongliu/scrapy,joshlk/scrapy,olafdietsche/scrapy,rahul-c1/scrapy,bmess/scrapy,darkrho/scrapy-scrapy,TarasRudnyk/scrapy,rolando-contrib/scrapy,olafdietsche/scrapy,stenskjaer/scrapy,cyrixhero/scrapy,hyrole/scrapy,AaronTao1990/scrapy,kalessin/scrapy,pfctdayelise/scrapy,nowopen/scrapy,legendtkl/scrapy,wujuguang/scrapy,fafaman/scrapy,z-fork/scrapy,zjuwangg/scrapy,ramiro/scrapy,yidongliu/scrapy,Djlavoy/scrapy,nowopen/scrapy,xiao26/scrapy,yusofm/scrapy,carlosp420/scrapy,irwinlove/scrapy,huoxudong125/scrapy,hectoruelo/scrapy,devGregA/scrapy,ssh-odoo/scrapy,JacobStevenR/scrapy,crasker/scrapy,rolando-contrib/scrapy,rolando-contrib/scrapy,olorz/scrapy,Zephor5/scrapy,tntC4stl3/scrapy,jeffreyjinfeng/scrapy,Geeglee/scrapy,Zephor5/scrapy,w495/scrapy,hectoruelo/scrapy,raphaelfruneaux/scrapy,rahulsharma1991/scrapy,YeelerG/scrapy,Slater-Victoroff/scrapy,rootAvish/scrapy,tliber/scrapy,snowdream1314/scrapy,godfreyy/scrapy,OpenWhere/scrapy,mgedmin/scrapy,wujuguang/scrapy,eLRuLL/scrapy,farhan0581/scrapy,cyberplant/scrapy,webmakin/scrapy,Adai0808/scrapy-1,rolando/scrapy,umrashrf/scrapy,beni55/scrapy,ramiro/sc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