Owner only commands

The following commands can only be used by users having owner privileges. Owner privileges can be granted to a user by adding their discord id in OWNERS field in the file constants.py.

Commands:

• .updateratings: Update the ratings of all the users in the database. (This process also happens automatically once every hour)

• .updatedb: Update the problemset stored in the database. (This process also happens automatically once every day)

• .backup: Take backup of the database. (This process also happens automatically once every 6 hours)

• .scrape_: Scrape contest author list from codeforces. (This process also happens automatically once every week)