NEW: Ctrl-X and Ctrl-V keys now cut and paste in editor.
FIX: Undo not working in editor.
FIX: Presenter audio was 6dB lower than expected in saved audio.
FIX: Export to mono audio only saved presenter side of audio.
FIX: Exporting large files sometimes resulted in only the beginning of the audio being exported.
FIX: Font size increased in chat window.
