add false positive category, closes #210
add false positive category, closes #210

abhijithch/MozDef,DarkPrince304/MozDef,526avijitgupta/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,mpurzynski/MozDef,serbyy/MozDef,netantho/MozDef,Phrozyn/MozDef,jeffbryner/MozDef,ameihm0912/MozDef,triplekill/MozDef,eXcomm/MozDef,mozilla/MozDef,526avijitgupta/MozDef,eXcomm/MozDef,ameihm0912/MozDef,serbyy/MozDef,Phrozyn/MozDef,ameihm0912/MozDef,gdestuynder/MozDef,eXcomm/MozDef,jvehent/MozDef,jvehent/MozDef,jeffbryner/MozDef,gsssrao/MozDef,Phrozyn/MozDef,abhijithch/MozDef,526avijitgupta/MozDef,gsssrao/MozDef,triplekill/MozDef,mpurzynski/MozDef,netantho/MozDef,mpurzynski/MozDef,jvehent/MozDef,triplekill/MozDef,ameihm0912/MozDef,serbyy/MozDef,jeffbryner/MozDef,mpurzynski/MozDef,netantho/MozDef,eXcomm/MozDef,gsssrao/MozDef,DarkPrince304/MozDef,DarkPrince304/MozDef,gsssrao/MozDef,abhijithch/MozDef,DarkPrince304/MozDef,mozilla/MozDef,serbyy/MozDef,abhijithch/MozDef,Phrozyn/MozDef,netantho/MozDef,triplekill/MozDef,mozilla/MozDef,gdestuynder/MozDef,526avijitgupta/MozDef,jvehent/MozDef,jeffbryner/MozDef,mozilla/MozDef