Check for null when there are no images
Check for null when there are no images

if I did something like "hubot image me ablederfl33wo", I would get an error like:

/opt/hubot/scripts/google-images.coffee:47
      images = images.responseData.results;
                                  ^
TypeError: Cannot read property 'results' of null
    at imageMe (/opt/hubot/scripts/google-images.coffee:47:35)
    at IncomingMessage.ScopedClient.request (/opt/hubot/node_modules/hubot/node_modules/scoped-http-client/lib/index.js:61:20)
    at IncomingMessage.EventEmitter.emit (events.js:126:20)
    at IncomingMessage._emitEnd (http.js:366:10)
    at HTTPParser.parserOnMessageComplete [as onMessageComplete] (http.js:149:23)
    at Socket.socketOnEnd [as onend] (http.js:1356:12)
    at TCP.onread (net.js:418:26)
minted/hubot,leohmoraes/hubot,msound/hubot,yyolk/glitchby,rayatbuzzfeed/hubot,mrb/hubot,yujiroarai/hws-hubot,bgranberry/hubot,davidkassa/hubot,eetuuuu/hubot,doudoupower/hubot,aslihandincer/hubot,awbauer/hubot,armilam/lessonly-bort,PropertyUX/nubot,plated/hubot,PopExpert/hubot,decaffeinate-examples/hubot,nakaearth/myhubot,rileytg/chenbot,hubotio/hubot,julianromera/hubot,lizardpie/hubot,shinvdu/hubot,michaelansel/hubot,ClaudeBot/hubot,jaketrent/moneypenny,krahman/hubot,mutewinter/hubot,yyolk/glitchby,Arthraim/merlin,ykusumi/test-hubot,alexchenfeng/hubot,jasonrhodes/botzero,jianchen2580/hubot,alexchenfeng/hubot,PropertyUX/nubot,alexchenfeng/hubot,ykelvis/hubot,GrimDerp/hubot,kgrz/hubot,markstory/hubot,craig5/hubot,cameronmcefee/hubot,scboucher/hubot,ajschex/hubot,wyncode/hubot,ooohiroyukiooo/hubot,daudich/hubot,howprice/hubot,sdimkov/hubot,geoffreyanderson/hubot,zvelo/hubot,edorsey/hubot,sharabash/hubot,cycomachead/hubot,taojuntjpp/hubot,lizardpie/hubot,pchaigno/hubot,nandub/hubot,scboucher/hubot,github/hubot,kristenmills/hubot,eshamow/gutterbot,mchill/hubot,mcifani/dog-yoda,RavenB/hubot,gregkare/hubot,ouadie-lahdioui/hubot,fgbreel/hubot,dopeboy/hubot,lisb/hubot,SIOPCO/hubot,CobyR/hubot,b3nj4m/hubot,ajayanandgit/hubot,alucardzhou/hubot,andrewpong/awp-hubot,alexchenfeng/hubot,ToriTomyuTomyu/nothing-yet,lisb/hubot,nandub/hubot,jasonkarns/hubot,rileytg/chenbot,markstory/hubot,github/hubot,lisb/hubot,rafaell-lycan/Hubot-X9,Drooids/hubot,iDTLabssl/hubot,melexis/melexis-hubot,jaketrent/moneypenny,hcxiong/hubot,RiddickSky/hubot,Snorlock/hubot,Hartmarken/hubot,lukw00/hubot,codydaig/hubot,jschell/hubot,Mattlk13/Hubot,blackwellops/hubot,vkhang55/hubot,tiagochiavericosta/hubot,ToriTomyuTomyu/nothing-yet,joshsobota/hubot,mcifani/dog-yoda,andrewpong/awp-hubot,alexchenfeng/hubot,mcanthony/hubot,decaffeinate-examples/hubot,PopExpert/hubot,alex-zhang/hubot,mauricionr/hubot,makii42/hubot,WaleedAshraf/hubot,poppingtonic/hubot,ddmng/brazil82-hubot,mujiansu/hubot,hotrannam/hubot,kkirsche/hubot,limianwang/hubot,voltsdigital/hubot,bradparks/hubot__github_chat_bot,fstehle/hubot,rmdelo/appboy-hubot,chadfurman/hubot,hubotio/hubot,brodul/hubot,AlexandrPuryshev/hubot,keyvanakbary/hubot,wieden-kennedy/hubot,skcript/skubot,danielcompton/hubot,rlugojr/hubot,mjurczyk/hubot