Unit tests on PasswordManager are now much faster because the tests use a much

lower iterations count now then the default setting.

core/PasswordManager.h

@@ -29,7 +29,7 @@ public:
 
 //	static PasswordManager create(const std::string &file_name);
 
-	PasswordManager();
+	explicit PasswordManager(int iterations = 8192);
 	/** Unlocks the passwords of the connections.
 	 *
 	 * \return Normally it return a bool specifying if the password was accepted.
@@ -49,6 +49,7 @@ public:
 	Expected<bool> getPassword(const std::string &key, std::string &out);
 
 private:
+	int                   m_iterations;
 	Botan::AutoSeeded_RNG m_rng;
 	Botan::OctetString    m_keySalt;	  // salt for generating crypto key
 	StrengthenedKey       m_masterKey;  // crypto key