rename dn to username
rename dn to username

mpurzynski/MozDef,Phrozyn/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,mozilla/MozDef,mozilla/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,jeffbryner/MozDef,jeffbryner/MozDef,mozilla/MozDef,jeffbryner/MozDef,Phrozyn/MozDef,mozilla/MozDef,mpurzynski/MozDef,gdestuynder/MozDef,mpurzynski/MozDef,Phrozyn/MozDef,mpurzynski/MozDef,gdestuynder/MozDef