Update v0.1.8.1

[h2]Added initial force feedback for wheels[/h2] We added initial force feedback support for racing wheels. You can change the FFB intensity in the settings by adjusting the rumble intensity. More detailed settings for the FFB will follow. At the same time we fixed support for wheels with separate USB devices for pedals. [h2]Added remapping support for all controllers[/h2] You can now define your own key assignments for all controllers and wheels. We also added a setting to adjust the dead zone. [h2]Fixed controller selection / recognition bug[/h2] If you had problems with the recognition of your controller, this should now be fixed. [h2]Bugfixes & other changes[/h2] [list] [*] added new special event 6 [*] close chat window on enter [*] keep chat messages during load [*] added error logs for missing gl extensions [/list]