Update changelog

Author: DaneEveritt

CHANGELOG.md

@@ -12,6 +12,9 @@ This project follows [Semantic Versioning](http://semver.org) guidelines.
 ### Changed
 * Egg and server variable values are no longer limited to 191 characters. Turns out some games require a large number of characters in these fields.
 
+### Added
+* Users can now select their preferred language in their account settings.
+
 ## v0.7.9 (Derelict Dermodactylus)
 ### Fixed
 * Fixes a two-factor authentication bypass present in the password reset process for an account.