setup.py: only add lxml requirement if libxml2 is not available
setup.py: only add lxml requirement if libxml2 is not available

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