Fix coreaudio module not detecting changes of the default audio device.#249

alex-the-man wants to merge 1 commit intoandrewrk:masterandrewrk/libsoundio:masterfrom

alex-the-man:fix-core-audio-default-device-changealex-the-man/libsoundio:fix-core-audio-default-device-changeCopy head branch name to clipboard