Removed socket.io and exposed server object.
Removed socket.io and exposed server object.

As decided on the discussion with @atmos and @kashyapp at https://github.com/github/hubot/pull/446
hcxiong/hubot,eshamow/gutterbot,decaffeinate-examples/hubot,ToriTomyuTomyu/nothing-yet,ouadie-lahdioui/hubot,gregkare/hubot,voltsdigital/hubot,leohmoraes/hubot,lukw00/hubot,alex-zhang/hubot,andrewpong/awp-hubot,AlexandrPuryshev/hubot,PopExpert/hubot,joshsobota/hubot,ajschex/hubot,plated/hubot,Mattlk13/Hubot,RiddickSky/hubot,nandub/hubot,mcanthony/hubot,awbauer/hubot,aslihandincer/hubot,GrimDerp/hubot,makii42/hubot,ooohiroyukiooo/hubot,RavenB/hubot,armilam/lessonly-bort,eetuuuu/hubot,alucardzhou/hubot,fgbreel/hubot,yyolk/glitchby,bgranberry/hubot,PopExpert/hubot,ToriTomyuTomyu/nothing-yet,cycomachead/hubot,ykusumi/test-hubot,rileytg/chenbot,alexchenfeng/hubot,jasonrhodes/botzero,hubotio/hubot,mrb/hubot,wyncode/hubot,PropertyUX/nubot,jasonkarns/hubot,bradparks/hubot__github_chat_bot,doudoupower/hubot,blackwellops/hubot,rmdelo/appboy-hubot,PropertyUX/nubot,markstory/hubot,mchill/hubot,yyolk/glitchby,jschell/hubot,keyvanakbary/hubot,zvelo/hubot,decaffeinate-examples/hubot,vkhang55/hubot,alexchenfeng/hubot,cameronmcefee/hubot,mutewinter/hubot,kristenmills/hubot,danielcompton/hubot,geoffreyanderson/hubot,sdimkov/hubot,fstehle/hubot,WaleedAshraf/hubot,nandub/hubot,alexchenfeng/hubot,mjurczyk/hubot,rlugojr/hubot,julianromera/hubot,github/hubot,sharabash/hubot,CobyR/hubot,edorsey/hubot,taojuntjpp/hubot,lisb/hubot,daudich/hubot,shinvdu/hubot,Arthraim/merlin,jaketrent/moneypenny,ClaudeBot/hubot,pchaigno/hubot,ykelvis/hubot,limianwang/hubot,iDTLabssl/hubot,jianchen2580/hubot,kkirsche/hubot,lisb/hubot,brodul/hubot,chadfurman/hubot,yujiroarai/hws-hubot,Drooids/hubot,rayatbuzzfeed/hubot,hotrannam/hubot,melexis/melexis-hubot,davidkassa/hubot,alexchenfeng/hubot,nakaearth/myhubot,mauricionr/hubot,SIOPCO/hubot,scboucher/hubot,hubotio/hubot,tiagochiavericosta/hubot,andrewpong/awp-hubot,Hartmarken/hubot,jaketrent/moneypenny,kgrz/hubot,dopeboy/hubot,rafaell-lycan/Hubot-X9,mujiansu/hubot,github/hubot,scboucher/hubot,poppingtonic/hubot,michaelansel/hubot,krahman/hubot,b3nj4m/hubot,lisb/hubot,rileytg/chenbot,ddmng/brazil82-hubot,msound/hubot,wieden-kennedy/hubot,Snorlock/hubot,howprice/hubot,markstory/hubot,craig5/hubot,minted/hubot,skcript/skubot,alexchenfeng/hubot,ajayanandgit/hubot,codydaig/hubot