Modified `error_reply` utility so `kwargs` are passed to `Embed`.
Added `send_args` kwarg to `error_reply`.
Fixed an rroles issue where `UserInputError` handling would fail.
Completed the `duration` reaction role setting implementation.
Improved the `Duration` setting type format.
Moved reaction roles to their own module.
Various small bugfixes.
New `SettingType` `Message` for general message settings.
New setting `greeting_message`.
New setting `greeting_channel`.
New setting `starting_funds`.
New setting `returning_message`.
Add a greeting message hook.
Add initial funds on lion creation.
Data migration v3 -> v4.
Added flexibility to data `update_where`.
Added interactive utils, with improved pager.
Added user data table, with caching and transactional interface.
Added `topcoins` command to `Economy`
Added `top` command to `Study`