fix: Missing lib which generate a bug when under Node v4.*
fix: Missing lib which generate a bug when under Node v4.*

wonknu/abecms,abecms/abecms,abecms/abecms,AdFabConnect/abejs,AdFabConnect/abejs,wonknu/abecms,AdFabConnect/abejs,wonknu/abecms,abecms/abecms