v0.2.5	* Changed readmp3s routine to clockytracklist (merge)

v0.2.0 	* Adjusted code for python 3

v0.1.0	* added max7219 support, added signal handling 
	* Added additional logging messages for end of alarm
	* implemented SIGINT (Ctrl-C) handling to exit gracefully

v0.0.5	* initial working version
	* show alarmtime in startup

------------------------------------------------------------

issues
------
* alarmtime 15min -> 30min
* max7219 1st second of alarm 100% brightness issue
* address more than the 1st 10 tracks
* more clear log entry when demoing sample track editing tracklist
* change 5 seconds of track demo to on-off click method

todo
----
changes config file format to json
add SIGHUP handling for reload config and intergrate reloading of changes to tracklist or config