removed old error handling docs
removed old error handling docs

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