Re-Engine: fixed Release version
Re-Engine: fixed Release version

	Some declarations were missing in main/engine needed for Release only,
	and also one function had to return integer value, not void

OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue