Have travis generate test coverage using istanbul.
Have travis generate test coverage using istanbul.

gbraad/node-red,syzer/node-red,weitingchou/humix-think,codeaudit/node-red,anusornc/node-red,cloudfoundry-community/node-red-cf-ready,avinod1987/Node-Red,mw75/node-red,olopez32/node-red,knolleary/node-red,btsimonh/node-red,Kazuki-Nakanishi/node-red,HiroyasuNishiyama/node-red,Ubicall/node-red,xively/habanero,gbraad/node-red,retailos/node-red,rntdrts/node-red,fcollova/node-red,modulexcite/node-red,namgk/node-red,rntdrts/node-red,whummer/node-red,MADAR15/IoT-Modeler,fpt-software/seniot-data-workflow,xively/habanero,ioglue/ioglue,btsimonh/node-red,dbuentello/node-red,knolleary/node-red,zcpara/robot_gui_program,ty4tw/node-red,Ubicall/node-red,dbuentello/node-red,kanki8086/node-red,redcom/node-red-freeboard,Tizen-Sunfish/ehf-node-red,lostinthestory/node-red,mikestebbins/node-red,fpt-software/seniot-data-workflow,drwoods/node-red,modulexcite/node-red,nuroglu/cloudgate,cgvarela/node-red,Kazuki-Nakanishi/node-red,udayanga91/node-red,the-osgarden/pi-nodered-osg,FlowDesigner/node-red,ppillip/node-red,dojot/mashup,giovannicuriel/mashup,coderofsalvation/node-red,codeaudit/node-red,weitingchou/humix-think,MaxXx1313/my-node-red,rdrm2014/node-red,coderofsalvation/node-red,kanki8086/node-red,whummer/node-red,mblackstock/node-red-contrib,cgvarela/node-red,ChipSoftTech/HANDS2,nosun/node-red,lucciano/node-red,wajnberg/node-red,darcy202/node-red,redconnect-io/node-red,lostinthestory/node-red,augustnmonteiro/skills-visual-programming,monteslu/pagenodes,redconnect-io/node-red,nosun/node-red,udayanga91/node-red,fcollova/node-red,MaxXx1313/my-node-red,avinod1987/NodeRed,fpt-software/seniot-data-workflow,FlowDesigner/node-red,syzer/node-red,xively/habanero,ty4tw/node-red,anusornc/node-red,ChipSoftTech/HANDS2,tak4hir0/node-red,syzer/node-red,olopez32/node-red,whummer/node-red,xively/habanero,Kazuki-Nakanishi/node-red,wajnberg/node-red,mw75/node-red,MADAR15/IoT-Modeler,olopez32/node-red,syzer/node-red,drwoods/node-red,emiloberg/node-red,beni55/node-red,ppillip/node-red,redcom/node-red-freeboard,whoGloo/node-red,zcpara/robot_gui_program,FlowDesigner/node-red,ppillip/node-red,estbeetoo/beetoo-controller,redconnect-io/node-red,kanki8086/node-red,nuroglu/cloudgate,knolleary/node-red,whoGloo/node-red,anusornc/node-red,gbraad/node-red,gbraad/node-red,zcpara/robot_gui_program,PaGury/node-red,estbeetoo/beetoo-controller,rdrm2014/node-red,michaelsteenkamp/node-red,rdrm2014/node-red,Ubicall/node-red,dorado-lmz/node-red,redcom/node-red-freeboard,node-red/node-red,lostinthestory/node-red,monteslu/pagenodes,mikestebbins/node-red,udayanga91/node-red,ddm/node-red,lostinthestory/node-red,beni55/node-red,ilc-opensource/mcf,darcy202/node-red,avinod1987/Node-Red,dorado-lmz/node-red,cgvarela/node-red,namgk/node-red,cloudfoundry-community/node-red-cf-ready,augustnmonteiro/skills-visual-programming,darcy202/node-red,giovannicuriel/mashup,michaelsteenkamp/node-red,btsimonh/node-red,ddm/node-red,coderofsalvation/node-red,olopez32/node-red,zcpara/robot_gui_program,estbeetoo/beetoo-controller,the-osgarden/pi-nodered-osg,node-red/node-red,dojot/mashup,tak4hir0/node-red,the-osgarden/pi-nodered-osg,iotcafe/node-red,FlowDesigner/node-red,giovannicuriel/mashup,MADAR15/IoT-Modeler,anusornc/node-red,nuroglu/cloudgate,ioglue/ioglue,PaGury/node-red,dojot/mashup,kanki8086/node-red,PaGury/node-red,whoGloo/node-red,fpt-software/seniot-data-workflow,dorado-lmz/node-red,mw75/node-red,rdrm2014/node-red,Kazuki-Nakanishi/node-red,rntdrts/node-red,fcollova/node-red,emiloberg/node-red,iotcafe/node-red,Tizen-Sunfish/ehf-node-red,fcollova/node-red,nuroglu/cloudgate,ChipSoftTech/HANDS2,retailos/node-red,ddm/node-red,redcom/node-red-freeboard,dbuentello/node-red,knolleary/node-red,ioglue/ioglue,the-osgarden/pi-nodered-osg,modulexcite/node-red,node-red/node-red,cgvarela/node-red,drwoods/node-red,codeaudit/node-red,modulexcite/node-red,ppillip/node-red,wajnberg/node-red,redconnect-io/node-red,lucciano/node-red,whummer/node-red,MaxXx1313/my-node-red,wajnberg/node-red,PaGury/node-red,estbeetoo/beetoo-controller,Ubicall/node-red,whoGloo/node-red,lucciano/node-red,giovannicuriel/mashup,darcy202/node-red,HiroyasuNishiyama/node-red,weitingchou/humix-think,avinod1987/NodeRed,retailos/node-red,mw75/node-red,mikestebbins/node-red,ChipSoftTech/HANDS2,iotcafe/node-red,beni55/node-red,retailos/node-red,avinod1987/NodeRed,weitingchou/humix-think,beni55/node-red,codeaudit/node-red,ddm/node-red,augustnmonteiro/skills-visual-programming,avinod1987/Node-Red,nosun/node-red,MaxXx1313/my-node-red,ty4tw/node-red,mblackstock/node-red-contrib,cloudfoundry-community/node-red-cf-ready,HiroyasuNishiyama/node-red,iotcafe/node-red,augustnmonteiro/skills-visual-programming,dbuentello/node-red,michaelsteenkamp/node-red,dojot/mashup,cloudfoundry-community/node-red-cf-ready,avinod1987/Node-Red,drwoods/node-red,udayanga91/node-red,coderofsalvation/node-red,dorado-lmz/node-red,michaelsteenkamp/node-red,emiloberg/node-red,avinod1987/NodeRed,nosun/node-red,lucciano/node-red,mikestebbins/node-red