Using users details as features

[bkowshik]

Adding user details from the user's API:

• https://osm-comments-api.mapbox.com/api/v1/users/name/bkowshik

User features

• user_id
• user_name
• user_first_edit
• user_changesets
• user_features

[bkowshik]

Not a great difference after adding user details, except for the first could be harmful prediction, 😃

• https://github.com/mapbox/gabbar/blob/master/metrics.csv

---

cc: @anandthakker