adds batched output for logging

Created by: stringparser

Recently I have been reading a lot the bin code and noticed these lines.

• adds lib/batchThese.js
• modifies logging for task_start and task_stop events so the output is batched.

The reason for adding a batched output for task_stop is because sometimes the non-batched output for task_stop would write to stdout before the batch of task_start. I have took a constant length of 4 for the batch instead of 5 because on my 24'' monitor, when I have the terminal window at half the line breaks sometimes.