remove annoying comma from comm.js
remove annoying comma from comm.js

OCD reasons only

wajnberg/node-red,knolleary/node-red,augustnmonteiro/skills-visual-programming,ddm/node-red,dbuentello/node-red,augustnmonteiro/skills-visual-programming,augustnmonteiro/skills-visual-programming,ioglue/ioglue,redconnect-io/node-red,rdrm2014/node-red,wajnberg/node-red,dojot/mashup,redconnect-io/node-red,dojot/mashup,ioglue/ioglue,xively/habanero,estbeetoo/beetoo-controller,MaxXx1313/my-node-red,HiroyasuNishiyama/node-red,redconnect-io/node-red,node-red/node-red,PaGury/node-red,xively/habanero,wajnberg/node-red,estbeetoo/beetoo-controller,PaGury/node-red,mw75/node-red,kanki8086/node-red,namgk/node-red,retailos/node-red,giovannicuriel/mashup,Kazuki-Nakanishi/node-red,rdrm2014/node-red,kanki8086/node-red,MaxXx1313/my-node-red,retailos/node-red,rdrm2014/node-red,ddm/node-red,estbeetoo/beetoo-controller,kanki8086/node-red,node-red/node-red,btsimonh/node-red,mw75/node-red,Kazuki-Nakanishi/node-red,HiroyasuNishiyama/node-red,namgk/node-red,HiroyasuNishiyama/node-red,giovannicuriel/mashup,wajnberg/node-red,dojot/mashup,knolleary/node-red,knolleary/node-red,dbuentello/node-red,dbuentello/node-red,MaxXx1313/my-node-red,Kazuki-Nakanishi/node-red,giovannicuriel/mashup,MaxXx1313/my-node-red,dojot/mashup,kanki8086/node-red,retailos/node-red,giovannicuriel/mashup,retailos/node-red,ddm/node-red,node-red/node-red,mw75/node-red,dbuentello/node-red,btsimonh/node-red,knolleary/node-red,estbeetoo/beetoo-controller,redconnect-io/node-red,rdrm2014/node-red,PaGury/node-red,PaGury/node-red,ddm/node-red,xively/habanero,btsimonh/node-red,Kazuki-Nakanishi/node-red,augustnmonteiro/skills-visual-programming,xively/habanero,ioglue/ioglue,mw75/node-red