allow passing arguments to tox
allow passing arguments to tox

e.g. "tox -- scrapy.tests.test_contrib_loader" runs test_contrib_loader for Python 2.6 and 2.7

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