Update for modern Arduino env. Better handling of day of week and leap year. Integrate daily alarm support from jiki974
Merge pull request #1 from ssrb/master

Update for modern Arduino env. Better handling of DoW and leap year. Daily Alarm support from jiki974

I haven't tested this at all - I'm going to take it on faith, since I'm not currently set up to do anything w/ the the PCF8583.