Changelog stuff again.
# Minor Updates
-Simplify the usage string of `/userprefs`
+* Simplify the usage string of `/userprefs`
# Bugfixes
* Fix `/tptoggle` being forced off when the user is unable to use `/tptoggle`
* Fix `/powertooltoggle` changing the `/tptoggle` key instead
* Change data file migrator to use a versioned migrator - user data file is now version 2.
+* Ensure user files are saved directly after migration
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