New Column field types.
Allow Column to be an attribute of a non-rowmodel.
Add `references` field to Column.
Add logging for registry attach.
Add support for alternative join types.
Fix parsing bug in Update Query.
Fix parsing bug in Insert Query.
Add mapping interface to Model.
Implement OrderMixin, with ORDER and NULLS Enums.
Add `result` field to Query.
Updates gem audit table for more generality.
Fixes issue with `Row._refresh()`.
Data migration v11 -> v12.
Remove `set_gems` (not needed due to gem module refactor).
Add `meta.args` for command line argument access.
Add command line argument support for shard number.
Add shard count to config file.
Add `meta.sharding` exposing shard properties.
Add shard number to logging methods.
Add shard number to data appid.
New `study_time_since` database function from session history.
Add `Lion.timezone`.
Add `Lion.day_start`.
Add `Lion.studied_today`.
Made `Table.queries` an instance variable.
Renamed the session channel types.
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`