Wiping to blank state
Pretty simple script to unshorten pinboard.in links. Unshorten is a much nicer
term than lengthen.

TODO:

- remove async dependency. There is no need for async here - I could do it myself.
- Also, this pinboard module doesn't use the API token. Since it is pretty simple
  HTTP stuff I could probably do it myself.
Move authentication info into a separate JSON file in the home directory.
Update README