Added req.param() tests. Closes #885
Added req.param() tests. Closes #885

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