Age of cron jobs and no flags

ping-me works without flags now and the usage is more smoother.

See the README for detailed instructions.

Age of tags and daemons

ping-me Works with commands like

$ ping-me to go for a run -t 6 pm
$ ping-me to return books to library -d 25th november -t 10 am

And notifications are sent on native debian based desktop environment and OS X with terminal-notifier. See README to know how to use it.