seconds can be ''float''s, use proper conversion - addresses #258
seconds can be ''float''s, use proper conversion - addresses #258

ismaelgaudioso/Coherence,opendreambox/python-coherence,sreichholf/python-coherence,ismaelgaudioso/Coherence,furbrain/Coherence,opendreambox/python-coherence,coherence-project/Coherence,unintended/Cohen,sreichholf/python-coherence,unintended/Cohen,coherence-project/Coherence,furbrain/Coherence