Timestamps and clean-up

You can include a timestamp now with all the append/prepend actions. I made the timestamped versions alternates to the traditional ones.

Could come in handy if you want to use Event Triggers to log events, or create a trigger for

    “I farted” ⇥ Append with Timestamp To… ⇥ ~/Documents/fart.log

…or whatever.

See the commits for the various other clean-up stuff.