Use Xcode 11.4 on Travis
Use Xcode 11.4 on Travis

audiokit/AudioKit,adamnemecek/AudioKit,adamnemecek/AudioKit,adamnemecek/AudioKit,eljeff/AudioKit,audiokit/AudioKit,eljeff/AudioKit,eljeff/AudioKit,eljeff/AudioKit,audiokit/AudioKit,adamnemecek/AudioKit,audiokit/AudioKit