Change to message_type because type is too generic. (#3586)
Change to message_type because type is too generic. (#3586)


jean/sentry,looker/sentry,mvaled/sentry,JamesMura/sentry,looker/sentry,ifduyue/sentry,jean/sentry,mitsuhiko/sentry,beeftornado/sentry,zenefits/sentry,jean/sentry,fotinakis/sentry,ifduyue/sentry,BuildingLink/sentry,BuildingLink/sentry,ifduyue/sentry,mvaled/sentry,zenefits/sentry,mvaled/sentry,fotinakis/sentry,JackDanger/sentry,beeftornado/sentry,zenefits/sentry,mvaled/sentry,gencer/sentry,mvaled/sentry,mvaled/sentry,gencer/sentry,mitsuhiko/sentry,ifduyue/sentry,fotinakis/sentry,BuildingLink/sentry,jean/sentry,JackDanger/sentry,ifduyue/sentry,zenefits/sentry,JamesMura/sentry,BuildingLink/sentry,JamesMura/sentry,gencer/sentry,BuildingLink/sentry,JamesMura/sentry,fotinakis/sentry,gencer/sentry,beeftornado/sentry,JamesMura/sentry,alexm92/sentry,JackDanger/sentry,alexm92/sentry,looker/sentry,gencer/sentry,looker/sentry,alexm92/sentry,zenefits/sentry,jean/sentry,looker/sentry