Add a method to iterate over ISI outputs.
Add a method to iterate over ISI outputs.

sorgerlab/indra,bgyori/indra,johnbachman/indra,sorgerlab/belpy,sorgerlab/belpy,johnbachman/belpy,johnbachman/belpy,bgyori/indra,sorgerlab/belpy,johnbachman/indra,sorgerlab/indra,sorgerlab/indra,johnbachman/belpy,johnbachman/indra,bgyori/indra