Addding sourceipv4address field to be  a string.
Addding sourceipv4address field to be  a string.

Phrozyn/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,ameihm0912/MozDef,Phrozyn/MozDef,mpurzynski/MozDef,jeffbryner/MozDef,mozilla/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,jeffbryner/MozDef,gdestuynder/MozDef,mpurzynski/MozDef,ameihm0912/MozDef,mpurzynski/MozDef,gdestuynder/MozDef,ameihm0912/MozDef,Phrozyn/MozDef,mozilla/MozDef,mozilla/MozDef,ameihm0912/MozDef,jeffbryner/MozDef,mpurzynski/MozDef,mozilla/MozDef