Version 5.4.0

This release starts preparations for Willie 6. See https://sopel.chat/willie_6.html

Module changes

• Dropping the lowest results from .dice rolls works properly
• .blocks listing is now on one line
• HTML entities in reddit post titles are now displayed correctly

Core changes

• DB nick group merging now works properly
• A few combinations of authentication configuration that were broken are fixed

API changes

• The core config section now uses a 6.0-style config definition. Deprecated attributes will give a warning.
• Accessing core config values directly from the config object itself (rather than config.core) now appropriately prints a warning
• @require_chanmsg now works properly