only add _extra.mime on 'file's
only add _extra.mime on 'file's

jfederico/Hilary,mrvisser/Hilary,timdegroote/Hilary,simong/Hilary,jfederico/Hilary,nicolaasmatthijs/Hilary,stuartf/Hilary,simong/Hilary,Orodan/Hilary,stuartf/Hilary,nicolaasmatthijs/Hilary,Orodan/Hilary,Coenego/Hilary,ExC0d3/Hilary,timdegroote/Hilary,mrvisser/Hilary,ExC0d3/Hilary