Adding contentType for static files from bin Fixes #685
Adding contentType for static files from bin
Fixes #685

Hamcha/jsbin,AverageMarcus/jsbin,carolineartz/jsbin,svacha/jsbin,dedalik/jsbin,roman01la/jsbin,juliankrispel/jsbin,blesh/jsbin,filamentgroup/jsbin,thsunmy/jsbin,Freeformers/jsbin,saikota/jsbin,arcseldon/jsbin,fgrillo21/NPA-Exam,thsunmy/jsbin,yohanboniface/jsbin,dhval/jsbin,KenPowers/jsbin,IveWong/jsbin,mdo/jsbin,filamentgroup/jsbin,jasonsanjose/jsbin-app,jwdallas/jsbin,minwe/jsbin,Freeformers/jsbin,HeroicEric/jsbin,eggheadio/jsbin,kentcdodds/jsbin,knpwrs/jsbin,mingzeke/jsbin,johnmichel/jsbin,yize/jsbin,kirjs/jsbin,jasonsanjose/jsbin-app,jamez14/jsbin,mlucool/jsbin,knpwrs/jsbin,yize/jsbin,martinvd/jsbin,KenPowers/jsbin,carolineartz/jsbin,Hamcha/jsbin,IvanSanchez/jsbin,kentcdodds/jsbin,peterblazejewicz/jsbin,AverageMarcus/jsbin,y3sh/jsbin-fork,simonThiele/jsbin,simonThiele/jsbin,knpwrs/jsbin,IveWong/jsbin,kirjs/jsbin,yohanboniface/jsbin,nitaku/jervis,ilyes14/jsbin,roman01la/jsbin,minwe/jsbin,johnmichel/jsbin,mlucool/jsbin,dennishu001/jsbin,dhval/jsbin,arcseldon/jsbin,ctide/jsbin,jwdallas/jsbin,digideskio/jsbin,vipulnsward/jsbin,KenPowers/jsbin,francoisp/jsbin,IvanSanchez/jsbin,ctide/jsbin,pandoraui/jsbin,juliankrispel/jsbin,remotty/jsbin,eggheadio/jsbin,saikota/jsbin,jamez14/jsbin,dedalik/jsbin,late-warrior/jsbin,martinvd/jsbin,HeroicEric/jsbin,digideskio/jsbin,mcanthony/jsbin,francoisp/jsbin,fgrillo21/NPA-Exam,peterblazejewicz/jsbin,vipulnsward/jsbin,svacha/jsbin,jsbin/jsbin,late-warrior/jsbin,dennishu001/jsbin,mingzeke/jsbin,jsbin/jsbin,pandoraui/jsbin,fend-classroom/jsbin,ilyes14/jsbin,fend-classroom/jsbin,y3sh/jsbin-fork,mcanthony/jsbin