Makealotl Music Updates

I updated Note Nab at Makealotl Music! I had a teacher request that the treble clef questions stick to one octave, she wanted to play Note Nab with young children who had just started reading music. So, now Note Nab has the Simple Treble mode, where all the questions stay inbetween middle and high C. Also, if Delia goes a minute without answering a question, a pop up now appears to tell the user to talk to a note. I got that idea by watching Note Nab played at Game Harvest -- I was surprised how many people were content to wander around the opera house lawn and never touch anything.