refactor grunt prod configuration
refactor grunt prod configuration

stromhalm/apo,diydrones/droneshare,PHELiOX/droneshare,PHELiOX/droneshare,vikram-gsu/FindMyHome,dronekit/droneshare,dronekit/droneshare,nmehta6/fatarrow,jason4short/droneshare,PHELiOX/droneshare,diydrones/droneshare,SecureCloud-biz/droneshare,jason4short/droneshare,nmehta6/fatarrow,diydrones/droneshare,CaryLandholt/fatarrow,SecureCloud-biz/droneshare,SecureCloud-biz/droneshare,dronekit/droneshare