Restore original `res.app` when out() is called.
Restore original `res.app` when out() is called.

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