Added more tests for req.accepts()
Added more tests for req.accepts()

leiqiang75/express,sujianping/express,nodejs-camp/booklog-jason,supasate/express,ralic/express,isaacs/express,evilboss/express,juanpastas/express,youprofit/express,hightechweb/express,Riokai/express,luxe-eng/valet-express.express,vinodhalaharvi/express,za-creature/express,Ju2ender/express,YR/express,mimaidms/express,nodejs-camp/booklog-linkchen,nodejs-camp/booklog-tonebeta,nodejs-camp/booklog-archer,hpcslag/express,kentcdodds/express,pathirana/express,PeterWangPo/express,bercanozcan/express,nodejs-camp/booklog-mora,jenia0jenia/express,neomadara/express,udhayam/express,hl198181/express,WangCao/express,andrejewski/express,ci-test2/express,brianloveswords/express,andriyl/express,soyuka/express,nodejs-camp/booklog-Zak,chuym/express,lmtdit/express,BaggersIO/express,elkingtonmcb/express,PUSEN/express,dongseop/express,hacksparrow/express,nodejs-camp/booklog-ben,v10258/express,aifeld/express,ZackBotkin/express,corporateanon/express,sarvex/express,qq645381995/express,buildsample/express,pstrike/express,tjmehta/express,chrisinajar/express,kylezhang/express,fineday32/express,gnowoel/express,grigorkh/express,listepo/express,strongloop/express,tianhengzhou/express,Faiz7412/express,corporateanon/express,nodejs-camp/booklog-ausir,nodejs-camp/booklog-tonebeta,mcanthony/express,tfe/express,gdeividas/express,xiaofuzi/express,abhi3/express,danielrohers/express,dafabulousteach/express,samuelcastro/express,v10258/express,nbeydoon/express,btleffler/express,nodejs-camp/booklog-ausir,blakeembrey/express,kunalpict/express,mimaidms/express,blakeembrey/express,grigorkh/express,jinghuizhai/express,r14r/fork_express_master,tianhengzhou/express,leiqiang75/express,udhayam/express,friederbluemle/express,benshiue/booklog-ben,lian774739140/express,maraoz/express,wtony/express,heicx/express,flomotlik/express,dotnetCarpenter/express,rgrove/express,microlv/express,stewartml/express,nodejs-camp/booklog-polo,Flip120/express,neomadara/express,pshomov/express,juandav/express,rupanjanbaidya/express,nbeydoon/express,JulyZhu/express,kubrickology/express,michaeljunlove/express,abhi3/express,HXYNODE/express,lemelon/express,qitianchan/express,philxia/ex-tst-framework,Faiz7412/express,MoraLin/mora-test,philxia/ex-tst-framework,Eric-Vandenberg/express,bercanozcan/express,lmtdit/express,bjrmatos/express,ZackBotkin/express,Jonekee/express,swarajgiri/express,dieuly/express,nodejs-camp/booklog-linkchen,nodejs-camp/booklog-polo,listepo/express,devgeniem/express,stoskov/express,samuelcastro/express,topaxi/express,smcmurray/express,ericlu88/express,kylezhang/express,drzorm/express,andrejewski/express,strongloop/express,Haru1990/express,Matrixbirds/express,drzorm/express,smcmurray/express,HXYNODE/express,dafabulousteach/express,vidyar/express,vidyar/express,featurist/express,bjrmatos/express,v10258/express,r14r/fork_express_master,igarciaes/express,svnh/express,juandav/express,micha149/express,christopheranderson/express,dgofman/express,jenia0jenia/express,KodkodGates/express,simudream/express,Lexine/express,nodejs-camp/booklog-tonebeta-update,svnh/express,pathirana/express,youprofit/express,swarajgiri/express,sujianping/express,tjmehta/express,sarvex/express,hanweifish/express,kubrickology/express,vnglst/express,igarciaes/express,dongooo/express,methuz/express,stevemao/express,dongooo/express,r14r-work/fork_express_master,youprofit/express,xtidt/express,Ivanwangcy/express,dsupera13/express,hl198181/express,tyler-johnson/express,vinodhalaharvi/express,maraoz/express,CrazySherman/express,evilboss/express,1amageek/express,simudream/express,saisai/express,benshiue/booklog-ben,blairzhang/express,hacksparrow/express,nodejs-camp/booklog-archer,1amageek/express,fineday32/express,mikewesthad/express,christopheranderson/express,fakedarren/express,gretac/express,coreypnorris/express,LestaD/express,countdracular/express,llwanghong/express,kawanet/express,fuse-mars/express,llwanghong/express,WangCao/express,dgofman/express,stewartml/express,kunalpict/express,Matrixbirds/express,Talkyunyun/express,michaeljunlove/express,sibura/express,cflynn07/express,jimmykuo/express,nodejs-camp/booklog-jollen,baldurh/express,shanawarkhan/express,friederbluemle/express,buildsample/express,featurist/express,rupanjanbaidya/express,KodkodGates/express,nbeydoon/express,junxiong/express,listepo/express,blainsmith/express,simudream/express,ci-test2/express,friederbluemle/express,WebStyle/express,pstrike/express,nodejs-camp/booklog-homa,vidyar/express,grigorkh/express,flomotlik/express,elkingtonmcb/express,auth0/express,XueQian/express,hightechweb/express,BaggersIO/express,hdngr/express,supasate/express,nodejs-camp/booklog-homa,za-creature/express,RanadeepPolavarapu/express,TestingCI/express,stewartml/express,nodejs-camp/booklog-mora,buildsample/express,WebStyle/express,cflynn07/express,FernAbby/express,nodejs-camp/booklog-chle,qq645381995/express,FernAbby/express,qq645381995/express,codeforgeek/express,jenalgit/express,r14r-work/fork_express_master,YR/express,emvici/emvici-reqres-tify,methuz/express,TestingCI/express,Haru1990/express,nodejs-camp/booklog-s890506,Lexine/express,dreamingblackcat/express,Flip120/express,maraoz/express,fakedarren/express,MoraLin/mora-test,Eric-Vandenberg/express,codeforgeek/express,RanadeepPolavarapu/express,jenalgit/express,Ju2ender/express,WangCao/express,angelsanz/express,Ju2ender/express,stevemao/express,blakeembrey/express,abdulhannanali/express,vnglst/express,lmtdit/express,adjohnson916/express,nodejs-camp/booklog-leo,ZackBotkin/express,swstack/express,PUSEN/express,frootloops/express,nodejs-camp/booklog-Zak,KodkodGates/express,soyuka/express,LestaD/express,jenalgit/express,topaxi/express,kunalpict/express,chuym/express,lian774739140/express,rgrove/express,nodejs-camp/booklog-chle,yinhe007/express,evanlucas/express,coreypnorris/express,blainsmith/express,JulyZhu/express,dieuly/express,srichatala/express,luxe-eng/valet-express.express,stoskov/express,Talkyunyun/express,ci-test2/express,Kevnz/express,Kevnz/express,microlv/express,dotnetCarpenter/express,dotnetCarpenter/express,jinghuizhai/express,bercanozcan/express,dreamingblackcat/express,qitianchan/express,kentcdodds/express,kawanet/express,juanpastas/express,hpcslag/express,evilboss/express,caiocutrim/express,wtony/express,blairzhang/express,PeterWangPo/express,RickyDan/express,micha149/express,XueQian/express,nodejs-camp/booklog-jason,demohi/express,abdulhannanali/express,jymsy/express,luxe-eng/valet-express.express,saisai/express,qitianchan/express,mauricionr/express,CrazySherman/express,smcmurray/express,awronka/express,topaxi/express,hdngr/express,Flip120/express,hanqingnan/express,frank06/express,stoskov/express,adjohnson916/express,mcanthony/express,nodejs-camp/booklog-chenyou,vinodhalaharvi/express,Riokai/express,ericlu88/express,nathan818fr/express,jinghuizhai/express,weilixia/express,1amageek/express,hpcslag/express,ifraixedes/express,simplyianm/express,angelsanz/express,lemelon/express,Ivanwangcy/express,gnowoel/express,ahdinosaur/express,hanqingnan/express,andriyl/express,junxiong/express,abdulhannanali/express,simplyianm/express,sarvex/express,michaeljunlove/express,swstack/express,caiocutrim/express,mikewesthad/express,nodejs-camp/booklog-ansaga,expressjs/express,svnh/express,dongseop/express,angelsanz/express,XueQian/express,gdeividas/express,pshomov/express,nodejs-camp/booklog-leo,nodejs-camp/booklog-ben,thepont/express,wesleytodd/express,devgeniem/express,awronka/express,baldurh/express,junxiong/express,kylezhang/express,jymsy/express,coreypnorris/express,dreamingblackcat/express,thepont/express,blairzhang/express,dafabulousteach/express,Jonekee/express,1verson/express,demohi/express,robomc/express,RickyDan/express,nodejs-camp/booklog-chenyou,LestaD/express,Riokai/express,countdracular/express,nodejs-camp/booklog-polo,VegeChou/express,mauricionr/express,tyler-johnson/express,featurist/express,fuse-mars/express,supasate/express,hanweifish/express,dsupera13/express,fakedarren/express,gretac/express,gnowoel/express,expressjs/express,BaggersIO/express,nodejs-camp/booklog-jollen,jenia0jenia/express,1verson/express,frootloops/express,shanawarkhan/express,swarajgiri/express,yinhe007/express,philxia/ex-tst-framework,wtony/express,stevemao/express,sibura/express,vnglst/express,weilixia/express,philxia/ex-tst-framework,nodejs-camp/booklog-tonebeta-update,nodejs-camp/booklog-s890506,frank06/express,xiaofuzi/express,Eric-Vandenberg/express,wesleytodd/express,xiaofuzi/express,heicx/express,fanzetao/express,aifeld/express,auth0/express,chrisinajar/express,evanlucas/express,Faiz7412/express,dongseop/express,xtidt/express,fanzetao/express,TestingCI/express,za-creature/express,nathan818fr/express,btleffler/express,robomc/express,danielrohers/express,isaacs/express,ralic/express,srichatala/express,ifraixedes/express,chrisinajar/express,devgeniem/express,jimmykuo/express,ahdinosaur/express,hdngr/express,abhi3/express,VegeChou/express,corporateanon/express,nodejs-camp/booklog-ansaga