refactor(launcher): launcher outputs dots when child processes report data
refactor(launcher): launcher outputs dots when child processes report data

This avoids huge waits where it looks like things have stalled.
Closes #524

manoj9788/protractor,spirosikmd/protractor,mbrukman/protractor,kongx73/protractor,skyFi/protractor,marleitao/protractor,modernfidelity/protractor,BernardoSilva/protractor,nkhuyu/protractor,hankduan/protractor,alecxe/protractor,sjelin/protractor,likaiwalkman/protractor,jlin412/protractor,marleitao/protractor,onshape/protractor,benaston/protractor,stalniy/protractor,bnicart/protractor,NicoPennec/protractor,elgalu/protractor,alfonso-presa/protractor,lmacneil/protractor,sjelin/protractor,karthiktv006/protractor,marleitao/protractor,Everworks/protractor,nkhuyu/protractor,igniteram/protractor,blabno/protractor,chinnaamara/protractor,manoj9788/protractor,rsmith31415/protractor,igniteram/protractor,skyFi/protractor,gad2103/protractor,faceleg/protractor,joshmgrant/protractor,Jandersolutions/protractor,JLLeitschuh/protractor,xaka/protractor,panuhorsmalahti/protractor,MSakamaki/protractor,spirosikmd/protractor,blabno/protractor,stalniy/protractor,hdemon/protractor,tjabell/protractor,szikszail/protractor,GistIcon/protractor,telefonicaid/protractor,samccone/protractor,jcapozzi/protractor,spirosikmd/protractor,mstrutt/protractor,juliemr/protractor,MSakamaki/protractor,tboyce/protractor,telefonicaid/protractor,telefonicaid/protractor,vliloia/protractor,elgalu/protractor,tboyce/protractor,angular/protractor,tboyce/protractor,quicksnap/protractor,samccone/protractor,alfonso-presa/protractor,sirwalt/protractor,NicoPennec/protractor,panuhorsmalahti/protractor,Everworks/protractor,dylanb/protractor,gempesaw/protractor,bnicart/protractor,nwolverson/protractor,tjabell/protractor,HichemBenChaaben/protractor,surfjedi/protractor,nkhuyu/protractor,tiru67gmailcom/protractor,vliloia/protractor,xaka/protractor,SpiritIT/protractor,hsleung95/protractor,jphustman/protractor,faceleg/protractor,Everworks/protractor,JLLeitschuh/protractor,xtrepo/protractor,donaldpipowitch/protractor,joshmgrant/protractor,karthiktv006/protractor,marcysutton/protractor,hankduan/protractor,sirwalt/protractor,AbraaoAlves/protractor,mgiambalvo/protractor,hsleung95/protractor,benaston/protractor,MSakamaki/protractor,NicoPennec/protractor,HichemBenChaaben/protractor,benaston/protractor,stalniy/protractor,Jandersolutions/protractor,fox2081/protractor,jcapozzi/protractor,angular/protractor,GistIcon/protractor,blabno/protractor,vnaraper/Protractor-test,christian-bromann/protractor,xaka/protractor,hankduan/protractor,joshmgrant/protractor,mgiambalvo/protractor,vliloia/protractor,onshape/protractor,szikszail/protractor,surfjedi/protractor,kongx73/protractor,gad2103/protractor,manoj9788/protractor,HichemBenChaaben/protractor,sirwalt/protractor,SpiritIT/protractor,jlin412/protractor,nwolverson/protractor,juliemr/protractor,paraplexed/protractor,nwolverson/protractor,fancyhejianyang/protractor-operation,tanbo800/protractor,mstrutt/protractor,mstrutt/protractor,modernfidelity/protractor,marcysutton/protractor,jcapozzi/protractor,Droogans/protractor,cnishina/protractor,christian-bromann/protractor,panuhorsmalahti/protractor,juliemr/protractor,gad2103/protractor,BernardoSilva/protractor,kongx73/protractor,onshape/protractor,xtrepo/protractor,gempesaw/protractor,surfjedi/protractor,manoj9788/protractor,BernardoSilva/protractor,quicksnap/protractor,sjelin/protractor,elgalu/protractor,GistIcon/protractor,onshape/protractor,tanbo800/protractor,jphustman/protractor,chinnaamara/protractor,mgiambalvo/protractor,fancyhejianyang/protractor-operation,skyFi/protractor,cnishina/protractor,rsmith31415/protractor,fancyhejianyang/protractor-operation,donaldpipowitch/protractor,gempesaw/protractor,hsleung95/protractor,tanbo800/protractor,xaka/protractor,NickTomlin/protractor,mbrukman/protractor,AbraaoAlves/protractor,eduardomb/protractor,fox2081/protractor,Droogans/protractor,christian-bromann/protractor,jlin412/protractor,paraplexed/protractor,dylanb/protractor,lmacneil/protractor,juliemr/protractor,samccone/protractor,sjelin/protractor,rsmith31415/protractor,likaiwalkman/protractor,NickTomlin/protractor,jive/protractor,karthiktv006/protractor,marcysutton/protractor,modernfidelity/protractor,tiru67gmailcom/protractor,cnishina/protractor,igniteram/protractor,hdemon/protractor,SpiritIT/protractor,tjabell/protractor,NickTomlin/protractor,faceleg/protractor,fancyhejianyang/protractor-operation,cnishina/protractor,xtrepo/protractor,igniteram/protractor,mgiambalvo/protractor,mbrukman/protractor,vnaraper/Protractor-test,donaldpipowitch/protractor,jive/protractor,alecxe/protractor,paraplexed/protractor,chinnaamara/protractor,dylanb/protractor,bnicart/protractor,JLLeitschuh/protractor,tiru67gmailcom/protractor,fox2081/protractor,AbraaoAlves/protractor,eduardomb/protractor,eduardomb/protractor,Droogans/protractor,szikszail/protractor,jcapozzi/protractor,sirwalt/protractor,angular/protractor,JamesMGreene/meteor-storm,likaiwalkman/protractor,Everworks/protractor,jive/protractor,jlin412/protractor,jphustman/protractor,NickTomlin/protractor,marleitao/protractor,alecxe/protractor,alfonso-presa/protractor,hdemon/protractor,lmacneil/protractor,vnaraper/Protractor-test,angular/protractor