docs(elementArrayFinder): clarify the role of elementArrayFinder.then
docs(elementArrayFinder): clarify the role of elementArrayFinder.then

Closes #750

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