Get latest marionette-client from git master
Get latest marionette-client from git master

chmanchester/firefox-ui-tests,whimboo/firefox-ui-tests,galgeek/firefox-ui-tests,gbrmachado/firefox-ui-tests,armenzg/firefox-ui-tests,armenzg/firefox-ui-tests,sr-murthy/firefox-ui-tests,chmanchester/firefox-ui-tests,sr-murthy/firefox-ui-tests,gbrmachado/firefox-ui-tests,myrdd/firefox-ui-tests,myrdd/firefox-ui-tests,myrdd/firefox-ui-tests,utvar/firefox-ui-tests,whimboo/firefox-ui-tests,galgeek/firefox-ui-tests,whimboo/firefox-ui-tests,utvar/firefox-ui-tests,armenzg/firefox-ui-tests,Motwani/firefox-ui-tests,sr-murthy/firefox-ui-tests,Motwani/firefox-ui-tests,galgeek/firefox-ui-tests