Lot of password related changes all over the place.

Password is no longer saved with the connection list.
Password is not entered along with other connection credentials.
Password is now asked for when required.
Still working on saving the password and auto retrieving it from the password manager.

pglablib/ConnectionConfig.h

@@ -1,6 +1,7 @@
 #ifndef CONNECTION_H
 #define CONNECTION_H
 
+#include <QUuid>
 #include <vector>
 #include <string>
 
@@ -27,6 +28,9 @@ class ConnectionConfig {
 public:
 	ConnectionConfig();
 
+	void setUuid(const QUuid &uuid);
+	const QUuid &uuid() const;
+
 	void setName(std::string desc);
 	const std::string& name() const;
 
@@ -73,6 +77,7 @@ public:
 	bool dirty() const;
 	void clean();
 private:
+	QUuid m_uuid;
 	std::string m_name;
 	std::string m_host;
 	std::string m_hostaddr;