Fix inaccurate notifications issue

[stelcodes]

The pomo notify command uses the the pomo_msg bash function which sleeps until the current cycle portion should end. Upon waking up, it checks pomo_stat for the current pomodoro state. In order to get an accurate state, pomo_update needs to be called first because the pomodoro timer may have been restarted while pomo_msg was sleeping.

Fixes #14