Fix bug where @pingIntervalId is not being held
Fix bug where @pingIntervalId is not being held

setupExpress() assigns @pingIntervalId but then it is being reset to null
right after.

msound/hubot,joshsobota/hubot,jschell/hubot,skcript/skubot,fstehle/hubot,eshamow/gutterbot,lukw00/hubot,taojuntjpp/hubot,sdimkov/hubot,julianromera/hubot,decaffeinate-examples/hubot,Snorlock/hubot,cycomachead/hubot,ClaudeBot/hubot,PropertyUX/nubot,RavenB/hubot,jasonrhodes/botzero,ajayanandgit/hubot,WaleedAshraf/hubot,pchaigno/hubot,hcxiong/hubot,sharabash/hubot,gregkare/hubot,daudich/hubot,limianwang/hubot,krahman/hubot,bgranberry/hubot,danielcompton/hubot,hubotio/hubot,poppingtonic/hubot,minted/hubot,brodul/hubot,fgbreel/hubot,decaffeinate-examples/hubot,hotrannam/hubot,AlexandrPuryshev/hubot,mrb/hubot,zvelo/hubot,davidkassa/hubot,cameronmcefee/hubot,ykusumi/test-hubot,edorsey/hubot,shinvdu/hubot,jasonkarns/hubot,nandub/hubot,GrimDerp/hubot,plated/hubot,ddmng/brazil82-hubot,CobyR/hubot,wieden-kennedy/hubot,leohmoraes/hubot,mjurczyk/hubot,doudoupower/hubot,keyvanakbary/hubot,ajschex/hubot,michaelansel/hubot,aslihandincer/hubot,alex-zhang/hubot,yujiroarai/hws-hubot,hubotio/hubot,RiddickSky/hubot,eetuuuu/hubot,geoffreyanderson/hubot,rafaell-lycan/Hubot-X9,lisb/hubot,scboucher/hubot,mutewinter/hubot,howprice/hubot,scboucher/hubot,mchill/hubot,ooohiroyukiooo/hubot,codydaig/hubot,Drooids/hubot,github/hubot,jianchen2580/hubot,kgrz/hubot,Hartmarken/hubot,PropertyUX/nubot,kkirsche/hubot,vkhang55/hubot,chadfurman/hubot,melexis/melexis-hubot,craig5/hubot,mauricionr/hubot,dopeboy/hubot,alucardzhou/hubot,kristenmills/hubot,awbauer/hubot,github/hubot,lisb/hubot,tiagochiavericosta/hubot,lisb/hubot,Mattlk13/Hubot,ouadie-lahdioui/hubot,nandub/hubot,mcanthony/hubot,b3nj4m/hubot,blackwellops/hubot,rmdelo/appboy-hubot,mujiansu/hubot,rlugojr/hubot,bradparks/hubot__github_chat_bot,makii42/hubot,voltsdigital/hubot,iDTLabssl/hubot,ykelvis/hubot,Arthraim/merlin,wyncode/hubot