Implemented iterable/reduce.
Implemented iterable/reduce.

ivoreis/trine,tomekwi/trine,jussi-kalliokoski/trine,ivoreis/trine,beni55/trine,stoeffel/trine,edge/trine,izaakschroeder/trine,tomekwi/trine,mcanthony/trine,jussi-kalliokoski/trine,edge/trine,mcanthony/trine,izaakschroeder/trine,stoeffel/trine,beni55/trine