Const correctness, override keyword, a bunch of stuff..

include/db/AuthTable.h

@@ -29,7 +29,6 @@ public:
 		// create table columns
 		createTable(QStringList()<<"user TEXT"<<"password BLOB"<<"token BLOB"<<"salt BLOB"<<"comment TEXT"<<"id TEXT"<<"created_at TEXT"<<"last_use TEXT");
 	};
-	~AuthTable(){};
 
 	///
 	/// @brief      Create a user record, if called on a existing user the auth is recreated

include/db/DBManager.h

@@ -27,7 +27,7 @@ class DBManager : public QObject
 
 public:
 	DBManager(QObject* parent = nullptr);
-	~DBManager();
+	~DBManager() override;
 
 	/// set root path
 	void setRootPath(const QString& rootPath);

include/db/InstanceTable.h

@@ -27,9 +27,7 @@ public:
 
 		// start/create the first Hyperion instance index 0
 		createInstance();
-
 	};
-	~InstanceTable(){};
 
 	///
 	/// @brief Create a new Hyperion instance entry, the name needs to be unique

include/db/MetaTable.h

@@ -23,13 +23,12 @@ public:
 		setTable("meta");
 		createTable(QStringList()<<"uuid TEXT"<<"created_at TEXT");
 	};
-	~MetaTable(){};
 
 	///
 	/// @brief Get the uuid, if the uuid is not set it will be created
 	/// @return The uuid
 	///
-	inline const QString getUUID()
+	inline QString getUUID() const
 	{
 		QVector<QVariantMap> results;
 		getRecords(results, QStringList() << "uuid");

include/db/SettingsTable.h

@@ -23,7 +23,6 @@ public:
 		// create table columns
 		createTable(QStringList()<<"type TEXT"<<"config TEXT"<<"hyperion_inst INTEGER"<<"updated_at TEXT");
 	};
-	~SettingsTable(){};
 
 	///
 	/// @brief      Create or update a settings record