Document all 1.4.x releases in the changelog
Document all 1.4.x releases in the changelog

meew0/discordrb,VxJasonxV/discordrb,megumisonoda/discordrb,Roughsketch/discordrb,sarsntony/discordrb,Roughsketch/discordrb,VxJasonxV/discordrb,meew0/discordrb,sarsntony/discordrb,megumisonoda/discordrb