pin request to avoid breakage for node v0.10.x - request/request#2772
pin request to avoid breakage for node v0.10.x - request/request#2772

mapbox/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,mapbox/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio