Logging functionality

[lingzhiyu]

For a large scale college event, some sort of accountability and records has to be present. Using a logger would allow for the administrators to store information on program errors, player-to-player messages and possible program exceptions.

Whilst Heroku does provide basic logging features, the number of view-able log entries is limited and a copy of this log is not retrievable.

Some ideas:

• Store logs file somewhere and implement a function to access it from Telegram. (Not sure if this is viable)
• Store logs in the sql (Not sure if sql database hobby version has sufficient storage)