added language selection to the settings interface
bumped version to 4.0.9
updated email to rshikariknight@gmail.com
added debug output for setlanguage
updated changelog
Merge remote-tracking branch 'origin/development' into bleeding-edge
Merge remote-tracking branch 'origin/bleeding-edge'

* Added language selection to the settings interface
* Updated my email on the credits
* Added debug output for rsu::client::language::setlanguage