Stopped the tests from failing if the Twitter username is null in the API response
Stopped the tests from failing if the Twitter username is null in the API response

asgrim/joindin-api,magicmonkey/joindin-api,tdutrion/joindin-api,joindin/joindin-api,waterada/joindin-api,heiglandreas/joindin-api,studio24/joindin-api,joindin/joindin-api,lornajane/joindin-api,shaunmza/joindin-api,jozzya/joindin-api,railto/joindin-api,shaunmza/joindin-api,phoenixrises/joindin-api,dstockto/joindin-api,railto/joindin-api,magicmonkey/joindin-api,dstockto/joindin-api,asgrim/joindin-api,EricHogue/joindin-api,jozzya/joindin-api,joindin/joindin-api,heiglandreas/joindin-api,lornajane/joindin-api,dannym87/joindin-api,railto/joindin-api,studio24/joindin-api,dstockto/joindin-api,dannym87/joindin-api,akrabat/joindin-api,EricHogue/joindin-api,tdutrion/joindin-api,phoenixrises/joindin-api,heiglandreas/joindin-api,akrabat/joindin-api,studio24/joindin-api,shaunmza/joindin-api,dannym87/joindin-api,lornajane/joindin-api,waterada/joindin-api,phoenixrises/joindin-api,asgrim/joindin-api,jozzya/joindin-api,waterada/joindin-api,akrabat/joindin-api,tdutrion/joindin-api,magicmonkey/joindin-api,EricHogue/joindin-api