fixed backwards compability with images/media pipeline, after crawler singleton removal in r2758
fixed backwards compability with images/media pipeline, after crawler singleton removal in r2758

cyrixhero/scrapy,beni55/scrapy,pombredanne/scrapy,nett55/scrapy,mouadino/scrapy,IvanGavran/scrapy,codebhendi/scrapy,lacrazyboy/scrapy,zhangtao11/scrapy,rklabs/scrapy,ashishnerkar1/scrapy,ramiro/scrapy,zjuwangg/scrapy,elijah513/scrapy,ashishnerkar1/scrapy,OpenWhere/scrapy,xiao26/scrapy,nowopen/scrapy,Preetwinder/scrapy,cyberplant/scrapy,shaform/scrapy,KublaikhanGeek/scrapy,nikgr95/scrapy,zjuwangg/scrapy,jdemaeyer/scrapy,Cnfc19932/scrapy,cursesun/scrapy,zackslash/scrapy,kashyap32/scrapy,devGregA/scrapy,kazitanvirahsan/scrapy,wujuguang/scrapy,gbirke/scrapy,dhenyjarasandy/scrapy,github-account-because-they-want-it/scrapy,ramiro/scrapy,wenyu1001/scrapy,hyrole/scrapy,Partoo/scrapy,pranjalpatil/scrapy,profjrr/scrapy,rootAvish/scrapy,cyberplant/scrapy,webmakin/scrapy,songfj/scrapy,redapple/scrapy,rolando/scrapy,Ryezhang/scrapy,w495/scrapy,scorphus/scrapy,cursesun/scrapy,avtoritet/scrapy,darkrho/scrapy-scrapy,webmakin/scrapy,snowdream1314/scrapy,nguyenhongson03/scrapy,livepy/scrapy,w495/scrapy,rahul-c1/scrapy,kmike/scrapy,CodeJuan/scrapy,godfreyy/scrapy,rahul-c1/scrapy,moraesnicol/scrapy,rdowinton/scrapy,jiezhu2007/scrapy,Bourneer/scrapy,beni55/scrapy,heamon7/scrapy,stenskjaer/scrapy,dangra/scrapy,jeffreyjinfeng/scrapy,umrashrf/scrapy,barraponto/scrapy,stenskjaer/scrapy,cleydson/scrapy,nett55/scrapy,farhan0581/scrapy,carlosp420/scrapy,pablohoffman/scrapy,z-fork/scrapy,eliasdorneles/scrapy,haiiiiiyun/scrapy,nikgr95/scrapy,Timeship/scrapy,huoxudong125/scrapy,emschorsch/scrapy,JacobStevenR/scrapy,fqul/scrapy,hyrole/scrapy,mlyundin/scrapy,dangra/scrapy,tntC4stl3/scrapy,zackslash/scrapy,csalazar/scrapy,nowopen/scrapy,Slater-Victoroff/scrapy,barraponto/scrapy,finfish/scrapy,taito/scrapy,pawelmhm/scrapy,wangjun/scrapy,WilliamKinaan/scrapy,gnemoug/scrapy,Slater-Victoroff/scrapy,wzyuliyang/scrapy,eliasdorneles/scrapy,CENDARI/scrapy,redapple/scrapy,wzyuliyang/scrapy,kmike/scrapy,nguyenhongson03/scrapy,elacuesta/scrapy,taito/scrapy,wujuguang/scrapy,smaty1/scrapy,legendtkl/scrapy,barraponto/scrapy,ssh-odoo/scrapy,TarasRudnyk/scrapy,tagatac/scrapy,ArturGaspar/scrapy,profjrr/scrapy,Chenmxs/scrapy,jeffreyjinfeng/scrapy,rahulsharma1991/scrapy,livepy/scrapy,jiezhu2007/scrapy,dacjames/scrapy,Chenmxs/scrapy,Digenis/scrapy,johnardavies/scrapy,amboxer21/scrapy,Ryezhang/scrapy,pawelmhm/scrapy,yusofm/scrapy,jorik041/scrapy,fpy171/scrapy,Timeship/scrapy,agreen/scrapy,hwsyy/scrapy,sardok/scrapy,haiiiiiyun/scrapy,scorphus/scrapy,1yvT0s/scrapy,avtoritet/scrapy,raphaelfruneaux/scrapy,huoxudong125/scrapy,ylcolala/scrapy,Adai0808/scrapy-1,WilliamKinaan/scrapy,ssh-odoo/scrapy,jc0n/scrapy,Preetwinder/scrapy,dhenyjarasandy/scrapy,chekunkov/scrapy,ylcolala/scrapy,chekunkov/scrapy,coderabhishek/scrapy,zhangtao11/scrapy,OpenWhere/scrapy,haiiiiiyun/scrapy,rdowinton/scrapy,fqul/scrapy,moraesnicol/scrapy,Djlavoy/scrapy,ArturGaspar/scrapy,amboxer21/scrapy,shaform/scrapy,avtoritet/scrapy,jamesblunt/scrapy,ENjOyAbLE1991/scrapy,rahulsharma1991/scrapy,bmess/scrapy,Slater-Victoroff/scrapy,kashyap32/scrapy,Djlavoy/scrapy,devGregA/scrapy,hansenDise/scrapy,Partoo/scrapy,nfunato/scrapy,dgillis/scrapy,umrashrf/scrapy,johnardavies/scrapy,Adai0808/scrapy-1,elacuesta/scrapy,arush0311/scrapy,scrapy/scrapy,zackslash/scrapy,ENjOyAbLE1991/scrapy,irwinlove/scrapy,tliber/scrapy,kmike/scrapy,ssteo/scrapy,emschorsch/scrapy,agreen/scrapy,Lucifer-Kim/scrapy,jamesblunt/scrapy,ENjOyAbLE1991/scrapy,cyrixhero/scrapy,w495/scrapy,agusc/scrapy,godfreyy/scrapy,kazitanvirahsan/scrapy,nett55/scrapy,GregoryVigoTorres/scrapy,ssteo/scrapy,famorted/scrapy,curita/scrapy,wujuguang/scrapy,yidongliu/scrapy,kalessin/scrapy,dracony/scrapy,github-account-because-they-want-it/scrapy,crasker/scrapy,starrify/scrapy,chekunkov/scrapy,cleydson/scrapy,finfish/scrapy,olorz/scrapy,rahulsharma1991/scrapy,huoxudong125/scrapy,URXtech/scrapy,AaronTao1990/scrapy,liyy7/scrapy,rolando-contrib/scrapy,coderabhishek/scrapy,hwsyy/scrapy,ssteo/scrapy,Zephor5/scrapy,joshlk/scrapy,hectoruelo/scrapy,Bourneer/scrapy,kimimj/scrapy,elijah513/scrapy,olorz/scrapy,z-fork/scrapy,zjuwangg/scrapy,AaronTao1990/scrapy,cyberplant/scrapy,zhangtao11/scrapy,Parlin-Galanodel/scrapy,URXtech/scrapy,yidongliu/scrapy,farhan0581/scrapy,fafaman/scrapy,pablohoffman/scrapy,amboxer21/scrapy,hansenDise/scrapy,yidongliu/scrapy,smaty1/scrapy,Parlin-Galanodel/scrapy,hyrole/scrapy,CodeJuan/scrapy,kalessin/scrapy,kimimj/scrapy,smaty1/scrapy,fpy171/scrapy,yusofm/scrapy,irwinlove/scrapy,Bourneer/scrapy,KublaikhanGeek/scrapy,nfunato/scrapy,YeelerG/scrapy,eLRuLL/scrapy,CENDARI/scrapy,hwsyy/scrapy,dacjames/scrapy,curita/scrapy,hbwzhsh/scrapy,nguyenhongson03/scrapy,mlyundin/scrapy,johnardavies/scrapy,Preetwinder/scrapy,emschorsch/scrapy,codebhendi/scrapy,taito/scrapy,rahul-c1/scrapy,elijah513/scrapy,mgedmin/scrapy,pranjalpatil/scrapy,OpenWhere/scrapy,csalazar/scrapy,wangjun/scrapy,dgillis/scrapy,xiao26/scrapy,carlosp420/scrapy,scrapy/scrapy,hansenDise/scrapy,fontenele/scrapy,kimimj/scrapy,ylcolala/scrapy,jc0n/scrapy,crasker/scrapy,legendtkl/scrapy,AaronTao1990/scrapy,irwinlove/scrapy,famorted/scrapy,mgedmin/scrapy,stenskjaer/scrapy,jiezhu2007/scrapy,rolando-contrib/scrapy,elacuesta/scrapy,xiao26/scrapy,IvanGavran/scrapy,arush0311/scrapy,YeelerG/scrapy,profjrr/scrapy,rklabs/scrapy,gbirke/scrapy,raphaelfruneaux/scrapy,aivarsk/scrapy,kazitanvirahsan/scrapy,rolando-contrib/scrapy,tntC4stl3/scrapy,yarikoptic/scrapy,olafdietsche/scrapy,famorted/scrapy,shaform/scrapy,agusc/scrapy,rolando/scrapy,olafdietsche/scrapy,foromer4/scrapy,mgedmin/scrapy,scrapy/scrapy,foromer4/scrapy,liyy7/scrapy,Digenis/scrapy,ArturGaspar/scrapy,raphaelfruneaux/scrapy,zorojean/scrapy,carlosp420/scrapy,curita/scrapy,moraesnicol/scrapy,foromer4/scrapy,dgillis/scrapy,godfreyy/scrapy,crasker/scrapy,dangra/scrapy,fqul/scrapy,tagatac/scrapy,devGregA/scrapy,hbwzhsh/scrapy,rolando/scrapy,yusofm/scrapy,csalazar/scrapy,aivarsk/scrapy,wenyu1001/scrapy,webmakin/scrapy,snowdream1314/scrapy,tliber/scrapy,eLRuLL/scrapy,mlyundin/scrapy,sigma-random/scrapy,GregoryVigoTorres/scrapy,eliasdorneles/scrapy,lacrazyboy/scrapy,Parlin-Galanodel/scrapy,pfctdayelise/scrapy,1yvT0s/scrapy,pfctdayelise/scrapy,songfj/scrapy,ndemir/scrapy,pranjalpatil/scrapy,URXtech/scrapy,sardok/scrapy,cleydson/scrapy,jdemaeyer/scrapy,tntC4stl3/scrapy,rootAvish/scrapy,ramiro/scrapy,zorojean/scrapy,kashyap32/scrapy,Allianzcortex/scrapy,jeffreyjinfeng/scrapy,snowdream1314/scrapy,YeelerG/scrapy,starrify/scrapy,Geeglee/scrapy,Djlavoy/scrapy,starrify/scrapy,jorik041/scrapy,dacjames/scrapy,zorojean/scrapy,Chenmxs/scrapy,nikgr95/scrapy,Ryezhang/scrapy,TarasRudnyk/scrapy,Zephor5/scrapy,CodeJuan/scrapy,fafaman/scrapy,hectoruelo/scrapy,darkrho/scrapy-scrapy,bmess/scrapy,darkrho/scrapy-scrapy,Geeglee/scrapy,Lucifer-Kim/scrapy,sigma-random/scrapy,pfctdayelise/scrapy,JacobStevenR/scrapy,coderabhishek/scrapy,codebhendi/scrapy,fontenele/scrapy,Timeship/scrapy,IvanGavran/scrapy,Adai0808/scrapy-1,z-fork/scrapy,pawelmhm/scrapy,nfunato/scrapy,WilliamKinaan/scrapy,heamon7/scrapy,kalessin/scrapy,yarikoptic/scrapy,rdowinton/scrapy,Digenis/scrapy,pombredanne/scrapy,tliber/scrapy,Allianzcortex/scrapy,finfish/scrapy,JacobStevenR/scrapy,wenyu1001/scrapy,heamon7/scrapy,beni55/scrapy,wzyuliyang/scrapy,CENDARI/scrapy,wangjun/scrapy,Cnfc19932/scrapy,rklabs/scrapy,gnemoug/scrapy,olorz/scrapy,aivarsk/scrapy,pablohoffman/scrapy,Lucifer-Kim/scrapy,eLRuLL/scrapy,rootAvish/scrapy,jorik041/scrapy,cursesun/scrapy,liyy7/scrapy,hectoruelo/scrapy,Allianzcortex/scrapy,TarasRudnyk/scrapy,joshlk/scrapy,tagatac/scrapy,cyrixhero/scrapy,farhan0581/scrapy,joshlk/scrapy,mouadino/scrapy,hbwzhsh/scrapy,1yvT0s/scrapy,umrashrf/scrapy,github-account-because-they-want-it/scrapy,yarikoptic/scrapy,fontenele/scrapy,Partoo/scrapy,nowopen/scrapy,fafaman/scrapy,ndemir/scrapy,GregoryVigoTorres/scrapy,redapple/scrapy,KublaikhanGeek/scrapy,livepy/scrapy,Zephor5/scrapy,dracony/scrapy,Geeglee/scrapy,bmess/scrapy,dhenyjarasandy/scrapy,fpy171/scrapy,arush0311/scrapy,olafdietsche/scrapy,Cnfc19932/scrapy,songfj/scrapy,jc0n/scrapy,lacrazyboy/scrapy,scorphus/scrapy,pombredanne/scrapy,agreen/scrapy,dracony/scrapy,jdemaeyer/scrapy,ssh-odoo/scrapy,agusc/scrapy,legendtkl/scrapy