Update frontend translation files

Fix changelog typos

Fix hwengine crash when using >1 controllers Reason: Data type mismatch for SDL_JoystickName, we wed in an index, but it expected a controller handle. Solution: Switch to SDL_JoystickNameForIndex.

Add more sane default controls for controller

Fix broken controller/joystick button and axis events The problem were bad records in SDLh.pas

Detect Qt style after parameter parsing

Fix SDLInteraction strings not being translated

Refactor storage of joystick SDL key names

Make frontend detect controllers again

Update and change license information of Droplet sounds, now it's CC BY 3.0 Was previously labelled under license CC Sampling+ 1.0, which is considered non-free by FSF, OSI and DFSG.

Update and change license information of Droplet sounds, now it's CC BY 3.0 Was previously labelled under license CC Sampling+ 1.0, which is considered non-free by FSF, OSI and DFSG.

Fix deprecation warnings in libphyslayer

Fix warnings about unused params in C code

Update German translation

Update Lua/frontend locale files