Update JSF cookbook to use CSS selectors instead of regex, close #2720
Update JSF cookbook to use CSS selectors instead of regex, close #2720

wiacekm/gatling,MykolaB/gatling,pwielgolaski/gatling,MykolaB/gatling,ryez/gatling,gatling/gatling,thkluge/gatling,thkluge/gatling,timve/gatling,gatling/gatling,GabrielPlassard/gatling,pwielgolaski/gatling,pwielgolaski/gatling,wiacekm/gatling,wiacekm/gatling,MykolaB/gatling,timve/gatling,gatling/gatling,pwielgolaski/gatling,MykolaB/gatling,GabrielPlassard/gatling,gatling/gatling,wiacekm/gatling,ryez/gatling,timve/gatling,gatling/gatling,GabrielPlassard/gatling,ryez/gatling,GabrielPlassard/gatling,thkluge/gatling,timve/gatling,ryez/gatling,wiacekm/gatling,thkluge/gatling