update node-ical to 0.12.4
update node-ical to 0.12.4

Tyvonne/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror