v0.2.0

Lots of changes, updates and polishing! Find the list below:

Features

• Better support for command prefixes other than the default !.
• Just writing !silence now silences the currently active alarm.
• The bot will now print the correct syntax of a command if the user fails to follow it.
• The bot will reply to events if it cannot decrypt them, as well as offer helpful tips that both the user and bot operator can try to fix things.

Bugfixes

• Timezones. They should finally work correctly! ...no 100% guarantees though.
• Alarms were a bit broken. They're fixed now.
• Fix commands with formatting and newlines not being picked up by the bot.
• Fix non-latin characters preventing reminders from being deleted.

Internal changes

• Add a dev-optimised Dockerfile for quicker iteration during development.
• Better wording revolving alarms. They're just reminders that alarm repeatedly when they go off.
• Log why the bot is unable to start.
• Don't print "Unknown help topic" in case the user is trying to ask another bot for help.
• The config dict is now a singleton.
• Type hints everywhere!

The minimum Python version is now 3.6.