Change interfaces property on Event to use import_string and to handle missing interface imports
Change interfaces property on Event to use import_string and to handle missing interface imports

zenefits/sentry,chayapan/django-sentry,BayanGroup/sentry,songyi199111/sentry,zenefits/sentry,mvaled/sentry,ewdurbin/sentry,mvaled/sentry,BuildingLink/sentry,kevinlondon/sentry,mitsuhiko/sentry,Kryz/sentry,vperron/sentry,BuildingLink/sentry,wong2/sentry,hongliang5623/sentry,llonchj/sentry,jokey2k/sentry,JTCunning/sentry,nicholasserra/sentry,imankulov/sentry,zenefits/sentry,daevaorn/sentry,llonchj/sentry,wujuguang/sentry,songyi199111/sentry,ewdurbin/sentry,felixbuenemann/sentry,argonemyth/sentry,TedaLIEz/sentry,JamesMura/sentry,ewdurbin/sentry,fotinakis/sentry,argonemyth/sentry,Natim/sentry,fuziontech/sentry,wong2/sentry,ifduyue/sentry,vperron/sentry,imankulov/sentry,NickPresta/sentry,gencer/sentry,Natim/sentry,vperron/sentry,beni55/sentry,BuildingLink/sentry,fotinakis/sentry,JackDanger/sentry,alexm92/sentry,ifduyue/sentry,rdio/sentry,BuildingLink/sentry,NickPresta/sentry,SilentCircle/sentry,BayanGroup/sentry,jean/sentry,pauloschilling/sentry,beeftornado/sentry,kevinastone/sentry,jean/sentry,JamesMura/sentry,kevinlondon/sentry,imankulov/sentry,ngonzalvez/sentry,1tush/sentry,gg7/sentry,SilentCircle/sentry,camilonova/sentry,JamesMura/sentry,NickPresta/sentry,Kryz/sentry,mvaled/sentry,mvaled/sentry,drcapulet/sentry,fuziontech/sentry,JamesMura/sentry,korealerts1/sentry,gg7/sentry,drcapulet/sentry,rdio/sentry,boneyao/sentry,JTCunning/sentry,wujuguang/sentry,1tush/sentry,kevinastone/sentry,TedaLIEz/sentry,mitsuhiko/sentry,rdio/sentry,felixbuenemann/sentry,BuildingLink/sentry,fotinakis/sentry,boneyao/sentry,mvaled/sentry,ifduyue/sentry,gencer/sentry,rdio/sentry,1tush/sentry,gg7/sentry,beni55/sentry,daevaorn/sentry,fotinakis/sentry,jokey2k/sentry,kevinastone/sentry,SilentCircle/sentry,felixbuenemann/sentry,BayanGroup/sentry,gencer/sentry,nicholasserra/sentry,chayapan/django-sentry,ngonzalvez/sentry,camilonova/sentry,ngonzalvez/sentry,ifduyue/sentry,ifduyue/sentry,mvaled/sentry,JamesMura/sentry,alexm92/sentry,hongliang5623/sentry,nicholasserra/sentry,korealerts1/sentry,songyi199111/sentry,beeftornado/sentry,jokey2k/sentry,boneyao/sentry,NickPresta/sentry,pauloschilling/sentry,JTCunning/sentry,chayapan/django-sentry,pauloschilling/sentry,beni55/sentry,looker/sentry,llonchj/sentry,jean/sentry,kevinlondon/sentry,wong2/sentry,looker/sentry,Kryz/sentry,JackDanger/sentry,wujuguang/sentry,SilentCircle/sentry,daevaorn/sentry,JackDanger/sentry,TedaLIEz/sentry,fuziontech/sentry,Natim/sentry,looker/sentry,drcapulet/sentry,camilonova/sentry,zenefits/sentry,zenefits/sentry,gencer/sentry,daevaorn/sentry,looker/sentry,korealerts1/sentry,gencer/sentry,jean/sentry,looker/sentry,jean/sentry,argonemyth/sentry,alexm92/sentry,hongliang5623/sentry,beeftornado/sentry