Update multigraph.js
Update multigraph.js

emoncms/emoncms,inverse/emoncms,inverse/emoncms,emoncms/emoncms,inverse/emoncms,inverse/emoncms,emoncms/emoncms,chaveiro/emoncms,emoncms/emoncms,emoncms/emoncms,chaveiro/emoncms,chaveiro/emoncms,chaveiro/emoncms