Method isDemo

Source/Version.hpp:177–184

* Is this version a demo? * * NOTE: The PC-Format version is not considered a demo, as it is very close to the dos retail */

	 * NOTE: The PC-Format version is not considered a demo, as it is very close to the dos retail
	 */
	bool isDemo() const {
		return 	mRelease == eRelease::AmigaXMAS ||
				mRelease == eRelease::AmigaPower ||
				mRelease == eRelease::AmigaTheOne ||
				mRelease == eRelease::AmigaAction ||
				mRelease == eRelease::AmigaNotVeryFestive ||
				mRelease == eRelease::AmigaAlienLevels;
	}

	bool isCoverDisk() const {