Patch b0f9d3e8

Added new GameEventResponses (Thanks Amalien!)
Fixed issue where Linux couldn't build mods with the SDK.
Fixed modding system indicating a ready state before Workshop Downloads had finished. Should fix players menuing too quickly.
Fixed Workshop Downloads displaying pending downloads, as that made it look as if it was stuck as it downloaded some other mod in the background.
Started a UI refactor, it doesn't look very good yet, but is paving the way for it to be more maintainable and for me to add new screens.