Clang 5.0 fixes

- Added override keyword
- Removed inherited member variables

src/IniFile.h

@@ -71,7 +71,7 @@ public:
 	cIniFile(void);
 
 	// tolua_end
-	virtual ~cIniFile() = default;
+	virtual ~cIniFile() override = default;
 
 	virtual std::vector<std::pair<AString, AString>> GetValues(AString a_keyName) override;